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English definition of “silly”

silly

adjective     /ˈsɪl.i/
B1 showing little thought or judgment : Don't do that, you silly boy ! a silly mistake It was silly of you to go out in the sun without a hat .Stupid and sillyOf unsound mind embarrassed ; afraid that people will laugh at you : I feel silly in this dress . → Synonym foolish B1 not important , serious , or practical : She gets upset over such silly things. We were served our drinks in these silly little glasses .
(Definition of silly adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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