Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: Latin
Origin: fatuus 'stupid, tasteless'

fatuous

 adjective
     
fat‧u‧ous
very silly or stupid [= idiotic]:
fatuous questions
—fatuously adverb
—fatuousness noun [uncountable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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