Definition

Not sure or definite; having doubts about something.

Example

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

Conversation

I'm feeling a bit uncertain about our plans for the weekend.

I get that; things seem to change so quickly these days.

Yeah, I just wish I had a clearer idea of what to expect.

It'll be fine! We can always adjust if things turn out to be uncertain.

Synonyms & Antonyms

Root Explanation

Uncertain → It is formed from "un-" (meaning not) and "certain" (from Latin "certus", meaning sure or fixed). The word "uncertain" means not sure or having doubt about something.

Memory Tip

Think of 'not' ('un-') being added to 'sure' ('certain') — this helps you remember that 'uncertain' means not sure.

Visually Confused Words