Synonyms|66Antonyms|33|Broader|0Narrower|0Related|35
5
incredibly
5
unbelievably
4
improbably(adverb, uncertain)
2
implausibly
1
unlikely(unmistakably, possibly, perceptibly)
0
absurdly
0
amazingly
0
apocryphally
0
astoundingly
0
doubtfully
0
doubtless
0
exceptionally
0
extraordinarily
0
extremely
0
fantasticly
0
impossibly
0
impracticably
0
inconceivably
0
oddly
0
questionably
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APASmart Define. (2013). believably thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/believably/thesaurus/antonyms
ChicagoSmart Define. 2013. "believably thesaurus" https://smartdefine.org/believably/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2013, believably thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/believably/thesaurus/antonyms>.
MLASmart Define. "believably thesaurus" 28 June 2013. Web. 27 September 2026. <https://smartdefine.org/believably/thesaurus/antonyms>