Synonyms and antonyms of Ways of saying you are sure in American Thesaurus

surely (adverb)

without any doubt

undoubtedly (adverb)

used for saying that something is certainly true or is accepted by everyone

I bet/I’ll bet (spoken)

spoken used for saying that you are sure about something

correct me if I’m wrong ()

used when you are fairly sure that you are right, especially as a way of politely disagreeing with someone

unless I’m mistaken ()

used for politely saying you are certain that you are right about something

beyond/without a shadow of a doubt ()

used for saying that you are completely certain of something

know for a fact (that) ()

used for emphasizing that you are sure something is true

put money on something ()

used for emphasizing that you are completely certain that something will happen

no doubt/question but that ()

used for emphasizing that something is certain

in my humble opinion ()

used for expressing your opinion about something, especially when you are sure that you are right

beyond doubt/dispute ()

used for saying that something is so certain that it cannot be doubted or argued about

can (modal verb)

used for saying that you feel sure something is not possible or true

could have sworn ()

used for saying that you are sure that something happened

(do you) wanna/want to bet? ()

used for telling someone that you are certain what they are saying is wrong

have (verb)

used for showing that you are certain that something happens or is true, or for showing that you hope very much that it happens or is true

I’ll be bound ()

used when you have said something that you are certain is true

I’ll wager ()

used for saying that you are very confident that something is true although you have no proof

stake your life on something ()

used for saying that you are completely sure about something

you can bet your life/your bottom dollar ()

used for saying that you are sure something will happen or is true

you can’t go wrong ()

used for talking about situations where you are certain that someone will not make a mistake