Definition

Not having confidence or certainty about something.

Example

She felt unsure about her decision to move to a new city.

Conversation

I feel a bit unsure about my presentation tomorrow.

It's normal to feel that way before a big event.

Yeah, but I really want to make a good impression.

Just practice a bit more, and you'll be fine!

Synonyms & Antonyms

Root Explanation

Unsure → It is formed from the prefix "un-" (meaning not) and the root "sure" (from Old French *sûr*, meaning certain or secure). The word "unsure" means not certain or lacking confidence.

Memory Tip

Think of 'not' ('un-') being added to 'certain' ('sure') — that's why unsure means not certain.

Visually Confused Words