convinced

The word “convinced” means completely certain about something, whether or not the belief is actually true. In plain terms, fully believing something, sure of it in your own mind.

“Convinced” is pronounced kuhn-VIHNST (/kənˈvɪnst/ in IPA).

Here is “convinced” used in a sentence: “She remained convinced that she had left the keys at home.”

“Convinced” is an adjective.

“Convinced” is a fairly common word in modern English, usually learned at around the B2 level.

Both describe certainty, but 'convinced' suggests you reached that certainty after being persuaded — by argument, evidence, or experience. 'Sure' can simply be a settled feeling without that back-story. Being convinced implies your mind was won over, whereas being sure just states confidence in a belief.

Yes. Being convinced means feeling completely certain, whether or not the belief is actually true. People can be firmly convinced of things that turn out to be wrong, because conviction describes a state of mind rather than the accuracy of the fact. Certainty and correctness are not the same.

The words overlap, but 'convinced' usually refers to believing something is true, while 'persuaded' often refers to being moved to act. You can be convinced by an argument that a claim is correct, and persuaded to actually do something about it. Belief versus action is the key distinction.

The opposite of convinced is doubtful, unsure, or sceptical — not certain about something. Someone who remains unconvinced has heard the case but has not been won over. Where convinced means complete certainty, its opposites all describe lingering doubt or a mind that is still open to persuasion.