convinced

to be 100% certain

to be very certain

to show the highest degree of certainty, with no doubt at all

to have no remaining doubts

certain in a way that is solid and not easily changed

informal way of saying completely certain

certain in a profound or emotional way

nearly certain, but still having a small amount of doubt

similar to 'not completely convinced', suggests remaining doubt

becoming more and more certain over a period of time

very close to being certain, but with a final hesitation

certain after considering all details

not having reached a state of complete certainty

seeming to be certain, based on available evidence, but not confirmed

a strong, often literary, way of saying completely certain

moderately certain, more than 50% sure

not completely certain; having some reservations

partially certain, but still having significant doubts

a strong way of saying 'not at all convinced'

the most common way to express the state of being certain

to reach a state of certainty after a process of thinking or being persuaded

to continue to be certain, especially when others are not

to appear to be certain, from an observer's perspective

to seem certain based on what someone says or how they say it

to have an internal feeling of certainty

to seem certain about something based on appearance

used to introduce the subject or fact that one is certain about