crackpot
from
Moby Thesaurus II by Grady Ward, 1.0
58 Moby Thesaurus words for "crackpot":
alien, aliene, bedlamite, borderline case, case, character,
crackbrain, crank, cuckoo, dement, demoniac, ding-a-ling, dingbat,
eccentric, energumen, erratic, fanatic, flake, fou, freak,
harebrain, hermit, hobo, idiot, kook, lone wolf, loner, loon,
loony, lunatic, madman, maniac, maverick, meshuggenah, natural,
noncompos, nonconformist, nut, odd fellow, oddball, oddity,
original, outsider, pariah, phrenetic, queer duck, queer fish,
queer specimen, rara avis, raving lunatic, recluse, screwball,
solitary, strange duck, tramp, type, weirdo, zealot
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