An "unofficial" (not recognized by dictionaries) slang descriptor for a person/thing/action/object, etc., or a combination of, which is one or more of the following:

a waste of time, abandoned, abject, abominable, abortive, absurd, afraid, aimless, anxious, apprehenaive, arid, arrested, assailable, atomic, awful, baby, babyish, backward, bad, banal, barmy, barren, base, baseless, bastard, beastly, beggarly, behind, beside the question, blah, bland, bogus, bomb, bootless, boyish, brainless, bromidic, bummer, caitiffcapricious, careless, catchpenny, characterless, cheap, checked, cheesy, childish, childlike, clich├ęd, cloying, coarse, colorless, common, commonplace, confusing, contemptible, cotemptible, controvertible, conventional, cool, corn, cornball, corny, corrupt, counterproductive, cowering, cracked, crap, crappy, craven, crazy, crud, cruddy, daffy, daft, dastardly, dazed, dead, deadpan, deficient, degraded, degrading, dejected, delayed, delusive, dense, dense, deplorable, depraved, despicable, destitute, detestable, devoid, diffident, dim, diminutive, dippy, directionless, dirty, disgraceful, dishonest, dishonorable, dismayed, disposable, disreputable, dizzy, dodo, doltish, dopy, dotterel, down, downtrodden, drab, drifting, drudging, dull, dumb, empty, empty-headed, erratic, evanescent, everyday, evildoer, excessive, exhausted, expendable, expressionless, facetious, failed, failing, faint-hearted, fallacious, false, fanciful, fatuous, fawning, featherbrained, feeble, feebleminded, fickle, flaky, flashy, flat, flighty, flimsy, flip, flippant, fool, fool around, foolish, for grins, forlorn, fortuitous, foul, freaked out, freaky, frightened, frivolous, frothy, fruitless, futile, gagged up, garbage, garish, gay, giddy, girlish, glitzy, goalless, good-for-nothing, goofy, green, gross, groundless, groveling, grungy, gullible, gutless, hackneyed, half-baked, half-witted, hang dog, harebrained, heedless, ho hum, hokey, hokum, hollow, hopeless, humble, humbling, humdrum, humiliating, idiotic, idle, ignoble, ignominious, ignorant, ill-advised, ill-considered, illogical, imbecile, immaterial, immature, immobile, immoral, impassive, implausible, impracticable, impractical, improbable, inadequate, inane, inapplicable, inappreciable, incidental, inconceivable, incongruous, inconsequential, inconsiderable, incredible, indelicate, indiscreet, indiscriminate, ineffective, ineffectual, inept, inessential, inexpressive, infamous, infantile, inferior, inglorious, inscrutable, insensate, insignificant, insincere, insipid, insufficient, interminable, inutile, irksome, irrational nonsensical, irrelevant, irresolute, irresponsible, jejune, jittery, joking, joshing, junky, juvenile, kid stuff, kooky, lacking courage, lame, late, laughable, lemon, lifeless, light, light-minded, lily-livered, little, loathsome, loony, loser, lousy, low, low-born, lowly, lowly, low-ranking, ludicrous, mangy, meager, mean, meaningless, measly, mediocre, menial, mentally incompetent, meretricious, microscopic, mindless, minor, minute, indecisive, miscarried, miscreant, miserable, modest, momentary, monkey, monotonous, moronic, moth-eaten, naive, needless, negligible, nervous, niggling, nihil ad rem, no bargain, no dice, no good, no guts, no place, no-account, nonessential, nonsensical, not at issue, not serious, not to the purpose, nothing, nowhere, nugatory, hopeless, nuts, nutty, objectless, obscure, obtuse, odd, off offensive, old hat, old-fashioned, ordinary, otiose, outcast, paltry, panicky, pathetic, pedestrian, peripheral, petty, piddling, pitiable, pitiful, platitudinous, playful, plebeian, pointless, poker-faced, poor, potty, pre-kindergarten, preposterous, primitive, profitless, proletarian, prosaic, puerile, puny, purposeless, pusillanimous, random, rash, ratty, raunchy, recreant, removable, repetitious, result less, retiring, rinky-dink, rotten, rough, routine, rubbishy, run scared, sappy, scandalous, scanty, scared, scatterbrained, screwy, scrubby, scurvy, second-rate, seemly, senseless, sentimental, servile, severe, shabby, shallow, shameful, shiftless, shoddy, shopworn, shrinking, shtick, shy, silly, simple, simple-minded, skin-deep, sleazy, slight, slimy, slow, sluggish, small, small time, soft, sordid, sorry, sorry lot, spineless, sportive, squalid, square, stale, stale, stark, stereotyped, sterile, stiff, stock, stodgy, stolid, stray, stuffy, stupefied, stupid, submissive, subnormal, superficial, superfluous, tame, tatty, tawdry, tedious, terrible, the subject, the willies, thick, thickheaded, thin, thoughtless, threadbare, timid, timorous, tired, tiresome, tiring, tomfool, tongue-in-cheek, transparent, trashy, trifling, tripe, trite, trivial, trumpery, ugly, unassuming, unavailing, unbelievable, uncommunicative, unconvincing, uncouth, underdeveloped, underfoot, underprivileged, undevelopedundirected, undistinguished, unessential, unexciting, unexpressive, unfit, ungrounded, unguided, unimaginative, unimportant, unintelligent, unmanly, unnecessary, unneeded, unoriginal, unpersuasive, unplanned, unpredictable, unpretentious, unproductive, unprofitable, unreal, unreasonable, unrefined, unrelated, unsatisfactory, unsophisticated, noncommital, unsubstantial, unsuccessful, unthinking, unusable, unvaried, unworthy, uselessvacant, vacuous, vagrant, vaguevain, valueless, vanishing, vapid, vile, plebeian, volatile, vulgar, wackywandering, wanton, waste, watery, wayward, weak, wearisome, well-worn, whimsical, white elephant, wide of the mark, wide of the point, wishful, wishy-washy, witless, worthless, wretched, or yucky.
There are literally a thousand different uses for the slang version of "retarded" - (Quick note:) Usage-wise, it came before and set the precedence of the way we use "gay" in slang today - used correctly, they're practically interchangable.

"That test was really gay!"
"Oh yeah, our chemistry teacher is being retarded."

"Mary, stop being retarded! You're so gay, grow up!"

"I thought it was a simple babysitting job, but I was wrong. Besides all the other stuff, I had to clean up after the retard, which was pretty retarded. To top it off, he set the carpet on fire, which I had to put out with the flame-retardent extinguisher. And after all of that, the parents only paid me $15. Babysitting is gay."
by TBB August 05, 2005

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1. Something that is messed up
2. An insult
3. Something that's stupid
1. *looks at poster that's falling off wall* That poster's retarded
2. OMG your face is so retarded
3. Homework is so retarded
by Livvyxoxo April 27, 2014

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firm, first-rate, fit, fixed, focused, formal, forward, free spirit, fresh, fruitful, full, full of life, gay, genius, gentle, gentlemen, genuine, giddy, giving hope, glorious, good, good, good dice, good sport, good-doer, good-for-something, graceful, great, greatly courageous, grounded in sense, guided, gutsy, happy, hardworking, has a place, has guts, healthy, heightened, hero, heroic, high, high-born, high-ranking, honest, honorable, hope, hopeful, huge, humane, humble, hygienic, imaginative, important, in advance, in front, inclusive, independent, indispensable, individual, intelligent, intelligent, intentional, interesting, jolly, kind, kindly, kindly, ladies, lawful, leader, left in perfection, legitimate, lived, lively, logical, lovable, lovable, loved, macroscopic, magnificent, main, main character, major, manly, many layers, matter-of-fact, mature, meaningful, meriting, merry, mindful, mobile, model citizen, modest, momentous, moral, mosaic, necessary, needed, new, noble, normal, not in vain, not odd, not superficial, objective, on point, on purpose, on the right path, on the spot, on-time, original, outgoing, perceptive, perfect, permanent, persuasive, pertaining to, piquant, planned, plausible, playful, pleasant, plenty, plump mind, pointed, practicable, practical, precious, present, prize, probable, producing, profitable, proficient, prosperous, proud, provident, pure, pure within and without, purposed, purposeful, purposeful, quick, rational, rational, real
Russel is retarded.
by Gossamer Willowfly July 10, 2011

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Having really good qualities about yourself; havin a banging body; somethin that is just that thang!
"He so retarded wit it!"
"Them shoes is retarded!"
by Tone Tone October 11, 2006

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In this day and age, "retarded" is just another word for cool, dope, tight, chill, or whatever you say when you like something.
Beach Dude#1: Dude #2, the waves look pretty retarded out there, you wanna go catch them?
Beach Dude#2: SWEET!

Homeboy#1: Yo dawg... The clubs gonna be off da hook ta-nite. You down?
Homeboy#2: Hellz yeah homeboy#1, is gonna be retarded, foo.

RichBitch#1: Like, OMG... my dad just like totally got me the new 2005 BMW645ci. It's like, totally retarded! I love it!
RichBitch#2: That's hot... Didn't he like, get you the like, 2004 one last year?

Redneck: Ya'll imma go catchya some salmon for good eatin' tonight.
6 rednick kids: pop that's retarded!

ChineseGirl#1: Ching yong boing noi lang dong fang!
ChineseGirl#2: Pong bing dong retarded!
by Jimmy March 03, 2005

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reasonable, refined, related, relevant, renewed, reputable, reputable, resolute, responsible, resulting in, rich, righteous, romantic, sane, satisfactory, sensible, sensical, sensing, sensitive, sententious, sentimental, serious, serious, shining, significant, sincere, smart, smooth, sociable, solid, something, somewhere, sophisticated, soulful, special, specific, spinted, stable, stand ground, standing, standing tall, steadfast, steady, strong, strong-hearted, strong-minded, strong-minded, stylish, suave, substantial, succeeded, succeeding, successful, sufficient, supreme, swan, sweet, sympathetic, tactful, thinking, thoughtful, titanic, to the purpose, toned, top, treasurable, treasure, treasured, true, truthful, unassailable, unassuming, uncompressed, uncorrupt, uncovert, undiscriminatory, undisputed, undoubtable, undoubting, unexpendable, unfrightened, unique, unloathsome, unmeasly, unpaniced, unperturbable, unpretentious, unquitting, unreplaceable, unridiculable, unrushed, unscared, unshabby, unshallow, unshameful, unstale, unsubmissive, untiring, untrifling, untrivial, untrumped, unvanishing, unwasting, unwavering, unwearied, up, upgraded, uplifting, usable, useful, varied, warm, wel-formed, well-advised, well-carried, well-considered, well-done, well-focusd, well-mannered, well-rounded, well-spoken, well-valued, well-wired, whole, winner, wise, with a home, with purpose, with reason, without need for repent, witty, witty, wonderful, working, worth, worthwhile, worthy.
Russel is retarded.
by Gossamer Willowfly July 10, 2011

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An "unofficial" (not recognized by dictionaries) slang descriptor for a person/thing/action/object, etc., or a combination of, which is one or more of the following:

a great use of time, able, accounted, acting of own age, active, active mind, acute, adequate, admirable, adored, adult, ahead of schedule, alive, altruistically, always fresh, always in motion, amazing, amazing, amazing mind, animated, applaudable, applicable, appreciable, assertive, availing, aware, awesome, bargain, beautiful, beautiful, believable, benefactor, big, big time, blended, bold, brainy, brainy, brand new, brave, breathable, bright, brilliant, brilliant, calm, careful, certain, character, cherished, civilized, clean, clear, clearheaded, clear-minded, coinage, colorful, comforting, commendable, committing, communicative, competent, complex, conceivable, concerned, confident, congruous, consequential, considerable, contemporary, continued, convincing, cool, cooperative, correct, courteous, credible, crystal, cultured, cute, dear, decisive, deeply meaningful, defiant, deliberate, developed, different, different in the best of ways, directed, discrete, distinguished, dove, driver, educated, effective, effectual, effectual, empathy, endless, energetic, enjoying life, enlarging, enormous, enticing, equal, essential, essential, esteemed, excited, exciting, experienced, expression, expressive, , extraordinary, fabulous, factual, famous, fashionable, fashioned, fast, favorite, feathery, fecund, fertile
Russel is retarded.
by Gossamer Willowfly July 09, 2011

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A puerile state of extreme silliness: Often producing a high degree of comedic value.
Stop dancing on the bar, you're being retarded!
by Tom Foolery II December 25, 2010

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