Synonyms|804Antonyms|405|Broader|11Narrower|37Related|896
3
theory(noun, belief, uncertainty, truth, hypothesis)
3
unbelief
2
anxiety(noun, calm, ease, calmness)
2
concept(noun, uncertainty)
2
conjecture
2
contingency(noun, chance, possibility, improbability, unlikelihood)
2
enigma(noun, understand)
2
fancy(noun, dislike, hate, dream, liking)
2
fantasy(noun, reality)
2
hazard(noun, chance, safety, luck)
2
hesitancy
2
idea(noun, uncertainty)
2
illusion(noun, belief, reality)
2
incertitude
2
incredulity
2
indecisiveness(noun, confidence)
2
irresolution
2
uncertainness
2
vision
1
mistrust(noun, trust, doubtfulness)
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APASmart Define. (2016). certainty thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/certainty/thesaurus/antonyms
ChicagoSmart Define. 2016. "certainty thesaurus" https://smartdefine.org/certainty/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, certainty thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/certainty/thesaurus/antonyms>.
MLASmart Define. "certainty thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/certainty/thesaurus/antonyms>