105 entries under expression topic. ×

11
free spirit(noun, idiom, radical, rebel)
4
eccentric person(noun, idiom)
4
off the wall(adjective, idiom, beat, unusual)
3
non compos mentis(noun, adjective, idiom, crazy)
3
of unsound mind(adjective, idiom, silly, foolish)
3
queer duck(noun, person, character, unusual)
3
rara avis(character, dissentient, misfit)
2
freaked out(silly, foolish, unwise)
2
lone wolf(noun, nonconformist, oddity, loner)
2
mentally ill(idiom, off, dotty)
2
odd fellow(character, dissentient, misfit)
2
round the bend(idiom, silly, foolish, unwise)
1
beyond all reason(idiom, silly, foolish, fantastic)
1
bizarrely unusual(strange, crazy, absurd)
1
different breed(character, original, radical, liberal)
1
far out(adjective, unusual, wild, crazy)
1
fast and loose
1
fish out of water(original, radical, liberal, rebel)
1
fly ball(idiom, unusual, strange, unexpected)
1
for grins(funny, amusing, comic, farcical)
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APASmart Define. (2016). eccentric thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/eccentric/thesaurus/synonyms
ChicagoSmart Define. 2016. "eccentric thesaurus" https://smartdefine.org/eccentric/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, eccentric thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/eccentric/thesaurus/synonyms>.
MLASmart Define. "eccentric thesaurus" 30 March 2016. Web. 21 September 2026. <https://smartdefine.org/eccentric/thesaurus/synonyms>