Definition, Meaning & Synonyms
a shadow of a doubt
idiom
/ə ˈʃædoʊ əv ə daʊt/

Definition
A phrase meaning a very small amount of uncertainty or suspicion.

Examples
- She believed, without a shadow of a doubt, that she had made the right decision.
- The evidence was so strong that there was not a shadow of a doubt regarding his guilt.
- He speaks with confidence, and there isn’t a shadow of a doubt in his mind.

Meaning
When someone says there is not a shadow of a doubt, they are completely sure about something.

Synonyms
- without a doubt
- certainly
- undoubtedly