faulty
adulterated, amiss, awry, bad, below par, blamable, blemished, botched, broken, cracked, damaged, debased, defective, deficient, distorted, erroneous, fallacious, fallible, false, flawed, frail, impaired, imperfect, imprecise, inaccurate, inadequate, incomplete, incorrect, inexact, injured, insufficient, invalid, lame, leaky, lemon, maimed, malformed, malfunctioning, marred, rank, sick, tainted, unfit, unreliable, unretentive, unsound, warped, weak, wrong
Words you can keep