Synonyms|607Antonyms|112|Broader|9Narrower|11Related|650
3
finite
3
impossibility
3
inaccessible
3
insuperable(adjective, hopeless, impassable, insurmountable)
3
negative
3
objectionable(adjective, intolerable, ungovernable)
3
offensive(adjective, unpleasant, terrible, extreme, painful)
3
question
3
questionable(adjective, extraordinary, amazing, unlikely, unbelievable)
3
real
3
unrealisable
3
unsolvable
3
unsurmountable
3
visionary(adjective, perfect, wild, unreasonable, absurd)
3
weird
2
not likely(expression, idiom, unreasonable, dubious, unlikely)
2
odd
2
out(adjective, possible, gone)
2
abstract(adjective, perfect, false, wild, unreasonable)
2
absurdity
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APASmart Define. (2016). impossible thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impossible/thesaurus/synonyms
ChicagoSmart Define. 2016. "impossible thesaurus" https://smartdefine.org/impossible/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, impossible thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impossible/thesaurus/synonyms>.
MLASmart Define. "impossible thesaurus" 9 March 2016. Web. 22 September 2026. <https://smartdefine.org/impossible/thesaurus/synonyms>