Sure Synonyms
Words/phrases that have a similar definition to the word "sure" include...definite, assured, positively, dependable, solid, persuaded, all right, indeed, certain, convinced, sure thing, definitely, trustworthy, in no doubt, bound to be, really, absolutely, unquestionable, surely, surefire, trusty, clear in your mind, yes indeed, constant, confident, conclusive, certainly, effective, steady, loyal, of course, for certain, clearly, yes, reliable, guaranteed, undisputable, inevitable, for sure, positive, by all means, indubitable
Other words in thesaurus...