Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “dim”


adjective [-er/-est only]    /dɪm/ (-mm-)
not bright ; not giving or having much light : A dim bulb provides the only light in the hall . Something that is dim is also not clear in your mind or memory or not likely to happen : I had only a dim memory of a tall , slender man. dimly    /ˈdɪm·li/ adverb a dimly lit hallway
(Definition of dim adjective from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of dim

Definitions of “dim” in other dictionaries

Word of the Day

tie the knot

to get married

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More