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showing that you are not intelligent, not serious, not thinking carefully etc
unable to understand difficult or complicated ideas
unable to understand things quickly and easily
not intelligent, so that you need a lot of time to understand simple things
not sensible or intelligent
a start-up … whose value has reached more than one billion US dollars
to ask people to vote in order to decide an issue
an afternoon full of crafts
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Free thesaurus definition of words used to describe unintelligent people from the Macmillan English Dictionary - a free English dictionary online with thesaurus and with pronunciation from Macmillan Publishers Limited.