Synonyms|762Antonyms|307|Broader|6Narrower|0Related|647

26 entries under certainly topic. ×

22
clearly(adverb, simply, visibly, intelligibly)
21
obviously
16
openly(adverb, straight, positively, clearly)
13
purely(adverb, just, positively, simply)
13
unequivocally
11
definitely
8
absolutely
8
certainly
8
indubitably
8
positively
7
lucidly(adverb, positively, clearly, evidently)
7
undoubtedly
6
surely
6
unquestionably
4
undeniably
3
assuredly
3
incontestably
3
incontrovertibly
3
indisputably
2
trustingly(adverb, artlessly)
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ChicagoSmart Define. 2015. "plainly thesaurus" https://smartdefine.org/plainly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, plainly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/plainly/thesaurus/synonyms>.
MLASmart Define. "plainly thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/plainly/thesaurus/synonyms>