Usually used when discovering a disappointing fact, however one may use it for any purpose describing any antonym of the word Rad or Radical.
EX 1
"I friended her on Facebook and it turns out she had a boyfriend, it was the anti-rad."
EX 2
Person One "Last night dude spilled his beer on me and then puked on my carpet!"
Person Two "That's the anti rad dude."
EX 3
Person One "He volcano'd the bowl then said he would chip in a few bucks to pack another!"
Person Two "That dude is the anti rad, I'll avoid smoking him up at all costs!"
EX 1
"I friended her on Facebook and it turns out she had a boyfriend, it was the anti-rad."
EX 2
Person One "Last night dude spilled his beer on me and then puked on my carpet!"
Person Two "That's the anti rad dude."
EX 3
Person One "He volcano'd the bowl then said he would chip in a few bucks to pack another!"
Person Two "That dude is the anti rad, I'll avoid smoking him up at all costs!"
by Super Prime May 11, 2010

by thats a rad bro November 8, 2019

A grouping of two of the best compliments available in slang terms to create the feeling of greatness.
by Mikhail Thomas August 18, 2006

OK, radical. Radical was a common slang word for really great mostly used in the midwest USA in the early to mid 1980s. K rad, k bye, and k cool were alternatives to just "bye" on the phone, and later trickled into BBS sysop quit messages. k-kool also appeared on BBS's.
by Clewin January 4, 2006

by Super Jenius October 13, 2008
