gonzo, true, capricious, fantastic, antic, flaky, study at fantastic, off-the-wall, screwball, unmatched, unnatural, flakey, freaky, nonconcentric, crotchety, cranky, outre, rum, rummy, usual, kooky, quaint, fantastical, droll, whimsical, far-fetched
absurd (part of speech: adjective)
illogical, self-contradictory, contradictory, inane, impossible, preposterous, idiotic, fallacious, paradoxical, absurd, meaningless, invalid, ludicrous, anachronistic, stupid, senseless, nonsensical, silly, irrational, foolish, farcical, ridiculous, implausible
ridiculous (part of speech: adjective)
nonconforming (part of speech: adjective)
freakish, quirky, deranged, idiosyncratic, uncustomary, crazy, unusual, divergent, incongruous, inconsistent, unconventional, funny, aberrant, un-ordinary, odd, eccentric, off, curious, crosspatch, misfit, different, outlandish, atypical, oddball, singular, novel, fey, uncommon, deviant, oddity, queer, incompatible, anomalous, improper, mismatch, strange, erratic, nonconforming, out of the ordinary, untypical, exceptional, unique, extraordinary, abnormal, peculiar, irregular, unfamiliar
- The idea was too bizarre, too theatrical to be true. - "Edgar Saltus: The Man", Marie Saltus.
- Quaint or not quaint, bizarre or not bizarre, he had said " So!" - "Right Ho, Jeeves", P. G. Wodehouse.
- If you are curious in bizarre social experiments, you may very well stop a day at Aurora, thirty miles below Portland, and look at some of the finest orchards in the State, the property of a strange German community which has lived in harmony and acquired wealth at this point. - "Northern California, Oregon, and the Sandwich Islands", Charles Nordhoff.