Spelling.School · How to spell

How to spell unsure

What it means: Not feeling certain or confident about something.

In a sentence: Mark was unsure if he wanted to ride the roller coaster. ▶

The part people get wrong

Often misspelled as unsuree or unshore.

Same family: sure, surely, unsurely, assure, reassure. If you can spell one, the shared part carries to the others.

Where it comes from: “Unsure” is formed by adding the Old English prefix “un-,” meaning “not,” to “sure,” which came into English from Latin via French. Together they literally mean “not sure,” a pattern used in many English adjectives like “unhappy” and “unfair.”

Patterns it uses: Prefixes keep every letter

Try spelling it

You will hear the word and a sentence. Type it and press Enter. Then four more words from the same level, so you know where you stand.

Words like this

nursery · long-term · occurrence · unsafe · undo · unlock · unkind · uncover

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