Synonyms of for sure

for sure

phrase

as in sure

without any question

After he switched shifts at work, he said he would be at the party for sure.

Synonyms & Similar Words

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

Example Sentences

Recent Examples of for sure

But no one can know for sure who will turn out until after votes are counted — polls aren’t predictions, only snapshots in time. — Kayla Hayempour, NBC news, 19 Oct. 2026

The exact story of how coffee was discovered isn’t known for sure, but one popular legend says an Ethiopian goatherd named Kaldi noticed that when his goats ate from a red berry plant, they were infused with energy and stayed awake all night. — Olivia Wakim, AJC.com, 18 Oct. 2026

How can human beings know for sure if an AI is conscious or not? — David Berreby, IEEE Spectrum, 13 Oct. 2026

Below’s detour to Little Pot Rock wraps up quickly with little explanation for the erstwhile hag’s seemingly flesh-and-blood existence on the island, but something spooky’s going on with her for sure. — Sean T. Collins, Vulture, 9 Oct. 2026