Definition, Meaning & Synonyms
dim-bulb
noun
/ˌdɪm ˈbʌlb/

Definition
A person who is not very intelligent or is slow to understand things.

Examples
- Stop acting like a dim-bulb and pay attention to the instructions.
- He may look smart, but he’s such a dim-bulb when it comes to basic math.

Meaning
Typically used in a humorous or derogatory way to describe someone who lacks common sense or shows poor judgment.

Synonyms
- fool
- simpleton
- nincompoop
- dunce
- blockhead