5
believable(adjective, reasonable, unreasonable, trustworthy, unbelievable)
5
conceivable(adjective, reasonable, easy, implausible, unconvincing)
4
reasonable(adjective, imaginable)
3
feasible(adjective, improper, possible, impossible, doable)
3
credible(adjective, reasonable, unsound, unbelievable, believable)
3
likely(adjective, reasonable, imaginable)
3
possible(adjective, reasonable, unreasonable, unlikely, imaginable)
3
probable
2
imaginable(adjective, reasonable)
2
plausible(adjective, reasonable, unreasonable, imaginable)
2
thinkable
1
as expected
1
convincing
1
creditable
1
fathomable(adjective, reasonable, imaginable)
1
normal(adjective, reasonable, imaginable)
1
ostensible
1
presumptive
1
supposable
1
viable
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APASmart Define. (2015). inconceivable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/inconceivable/thesaurus/antonyms
ChicagoSmart Define. 2015. "inconceivable thesaurus" https://smartdefine.org/inconceivable/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, inconceivable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/inconceivable/thesaurus/antonyms>.
MLASmart Define. "inconceivable thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/inconceivable/thesaurus/antonyms>