Synonyms|913Antonyms|179|Broader|11Narrower|5Related|734

29 entries under clearly topic. ×

44
surely(adverb, good, fine, absolutely, easily)
39
definitely(adverb, interjection, absolutely, completely, positively)
36
absolutely(adverb, interjection, certain, limited, well)
31
positively(adverb, interjection, certain, limited, absolutely)
27
indubitably(adverb, interjection, absolutely, easily)
27
unquestionably(adverb, doubt, absolutely, assent, easily)
26
undoubtedly(adverb, certain, limited, absolutely, positively)
18
of course(expression, idiom, adverb, interjection, good)
16
doubtless(adjective, adverb, certain, limited, certainty)
16
undeniably(adverb, absolutely, very, positively, easily)
13
to be sure(expression, idiom, adverb, interjection, absolutely)
12
obviously(adverb, absolutely, positively, plainly)
12
categorically(adverb, well, absolutely, exactly, easily)
12
really(adverb, truth, absolutely, very, exactly)
12
indeed(adverb, well, truth, absolutely, assent)
10
without doubt(expression, adjective, idiom, adverb, absolutely)
9
sure(adjective, adverb, interjection, fine, certainty)
9
for certain(expression, idiom, adverb, certainty, absolutely)
8
indisputably(adverb, really, plainly, unquestionably)
7
without fail(expression, idiom, good, certainty, absolutely)
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APASmart Define. (2016). certainly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/certainly/thesaurus/synonyms
ChicagoSmart Define. 2016. "certainly thesaurus" https://smartdefine.org/certainly/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, certainly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/certainly/thesaurus/synonyms>.
MLASmart Define. "certainly thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/certainly/thesaurus/synonyms>