Secure, assured, assured, absolute, as sure as eggs is eggs, confident, and firm are all synonyms for sure. Uncertain and doubtful are antonyms of sure. And here are 93 another word for sure.
Assured, certain, confident, convinced, decided, definite, easy in one's mind, free from doubt, persuaded, positive, satisfied, secure, unfaltering, unhesitating, unshakeable, unvacillating, unwavering, and unshaken are all synonyms for sure.
Assured, bound, certain, confident, destined, fated, predestined, very likely, with no doubts about, and nailed on are all another word for sure.
Absolute, beyond doubt, beyond question, categorical, certain, clear, conclusive, decided, definite, evident, final, incontestable, incontrovertible, indisputable, indubitable, irrefutable, manifest, obvious, plain, proven, settled, true, undeniable, undoubted, unmistakable, unquestionable, well founded, well grounded, and patent are all synonyms for sure.
As sure as eggs is eggs, assured, certain, dependable, effective, established, foolproof, guaranteed, in the bag, incontestable, inevitable, infallible, irrevocable, never-failing, reliable, sure-fire, tested, tried and true, true, trustworthy, unambiguous, unerring, unfailing, and efficacious are all another word for sure.
Confident, firm, secure, solid, stable, steadfast, steady, unfaltering, unhesitating, unwavering, and unswerving are all synonyms for sure.
Sure synonym page has a variety of synonyms that differ in length. 3 synonyms with 4, and 14 letters and 6 synonyms with 5, and 6 letters. 12 synonyms with 7 letters and 10 synonyms with 8 letters.
11 synonyms with 9 letters and 9 synonyms with 10 letters. 13 synonyms with 11 letters and 7 synonyms with 12 letters. 4 synonyms with 13 letters and 1 synonym with 16, 17, and 18 letters. For a total of 87 another word for sure.
I'm sure this will work.
Are you sure about that?
She's sure of her decision.
Make sure to call him.