Synonyms of certainly

certainly

adverb

ˈsər-tᵊn-lē 

as in definitely

without any question

certainly, you can come to the party

Synonyms & Similar Words

• definitely
• surely
• sure
• clearly
• probably
• really
• undoubtedly
• likely
• truly
• easily
• unquestionably
• so
• assuredly
• indeed
• undeniably
• for certain
• doubtless
• indisputably
• damn well
• plainly
• possibly
• perhaps
• obviously
• inarguably
• by all means
• unarguably
• incontestably
• alright
• for sure
• all right
• incontrovertibly
• conceivably
• by all odds
• forsooth
• hands down
• unmistakably

Example Sentences

Recent Examples of certainly

With darker nights returning, a turbulent sun and a little help from the equinox, aurora season is certainly off to a promising start. — Daisy Dobrijevic, Space.com, 23 Sep. 2026

That these sort of games, with their duplicity, hypocrisies and teary moments of tenderness, are popular is beyond question, and that is certainly how viewers are invited to watch. — Television Critic, Los Angeles Times, 23 Sep. 2026

That certainly seems possible, now that the Panthers have signed Ihmir Smith-Marsette. — Scott Fowler, Charlotte Observer, 23 Sep. 2026

More than most singers, and certainly more than most singers in his contemporary classical world, Josh Groban has found a way to integrate comedy into his career. — Paul Grein, Billboard, 23 Sep. 2026