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English definition of “dim”

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dim

adjective uk   /dɪm/ (dimmer, dimmest) us  

dim adjective (NOT CLEAR)

C2 not giving or having much light: The lamp gave out a dim light. He sat in a dim corner of the waiting room. We could see a dim (= not easily seen) shape in the fog. literary If your eyes are dim, you cannot see very well.a dim memory, recollection, etc. C2 something that you remember slightly, but not very well: I had a dim recollection of having met her before.

dim adjective (NOT CLEVER)

informal not very clever: He's a nice guy, but a little dim. UK Don't be so dim!

dim adjective (NOT POSITIVE)

not likely to succeed: The company's prospects for the future are rather dim.
dimly
adverb uk   /ˈdɪm.li/ us  
The room was dimly lit. I dimly remembered reading the book a few years before.
dimness
noun [U] uk   /ˈdɪm.nəs/ us  

dim

verb [I or T] uk   /dɪm/ (-mm-) us  
C2 to (make something) become less bright: Someone dimmed the lights. The lights dimmed and the curtains opened. literary to (make a positive feeling or quality) become less strong: Our hopes/expectations dimmed as the hours passed.
(Definition of dim from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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