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Words used to describe unintelligent people - synonyms and related words

silly

adjective

showing that you are not intelligent, not serious, not thinking carefully etc

idiotic

adjective

extremely stupid

unintelligent

adjective

not intelligent

simple-minded

adjective

unable to understand difficult or complicated ideas

slow-witted

adjective

unable to understand things quickly and easily

slow

adjective

not intelligent, so that you need a lot of time to understand simple things

brainless

adjective

extremely stupid

thick

adjective

stupid

empty-headed

adjective

not sensible or intelligent

stupid

adjective

not intelligent, or not able to consider or judge things carefully

JOMO

… a feeling of pleasure you get from spending time doing what you want and not worrying about what other people are doing or saying

BuzzWord Article

Open Dictionary

brain fade

a temporary inability to think clearly or remember information

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