105 entries under expression topic. ×

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full of whims(idiom, caprice)
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good repute
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grammatical case
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graphic symbol
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guinea pig
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gung ho(adjective, keen, warm, silly)
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insane man(character, dissentient, misfit)
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mad as a March hare(idiom, silly, foolish, unwise)
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mental case(character, dissentient, misfit)
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mentally disturbed
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mentally strange(silly, foolish, unwise)
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newfangled contraption(character, dissentient, misfit)
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nobody home(unstable, disturbed, erratic, unhinged)
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not concentric
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not right(crazy, cuckoo, queer)
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nut case(character, crazy, loony, dissentient)
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nutty as a fruitcake(idiom, off, dotty)
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odd abnormal(unusual, strange, unexpected)
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odd man out(idiom, character, dissentient, misfit)
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odd one out(verb, phrasal verb)
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APASmart Define. (2016). eccentric thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/eccentric/thesaurus/synonyms
ChicagoSmart Define. 2016. "eccentric thesaurus" https://smartdefine.org/eccentric/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, eccentric thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/eccentric/thesaurus/synonyms>.
MLASmart Define. "eccentric thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/eccentric/thesaurus/synonyms>