doubt

To feel unsure whether someone is right or something is true or possible.

• I doubt his story.
• She doubted whether the plan would work.
• Do you doubt my ability to finish?

How to use it: doubt that… (I doubt that he will arrive on time.); doubt whether/if… (She doubts whether the tickets are still available.); doubt someone/something (He doubted the accuracy of the report.)

Similar words: question, disbelieve

Opposites: believe, trust

Common phrases: doubt someone, doubt something, doubt the truth

A feeling of not being sure whether something is true, right, or possible.

• I have doubts about the plan.
• Her explanation removed my doubt.
• There is some doubt about who owns the land.

How to use it: doubt about something (He expressed doubt about the cost.); doubt as to whether… (There is doubt as to whether the bridge is safe.)

Similar words: uncertainty, misgiving

Opposites: certainty

Common phrases: have a doubt, doubt about something, serious doubt, without doubt