dumb
adjective
UK/dʌm/
US/dʌm/
Definitions of dumb adjective
speech
- C1old-fashioned
unable to speak
In the past, children with such conditions were often described as "deaf and dumb."
The illness left him with slurred speech, making him almost dumb.
In ancient times, they believed he was dumb because he never spoke.
intelligence
- B2informal
stupid
That's a dumb idea, let's not bring it up again.
He made a really dumb decision, and I’m worried about him.
This question is so simple, don't ask such a dumb question.
Phrasal Verbs of dumb
- dumb something down
to simplify something and make it easier to grasp, particularly to increase its popularity
• The author of the book made an effort to dumb down the complex scientific concepts to make it suitable for younger readers.