[ stoo-pid, styoo‐ ]
/ ˈstu pɪd, ˈstyu‐ /

adjective, stu·pid·er, stu·pid·est.


Informal. a stupid person.

Origin of stupid

1535–45; < Latin stupidus, equivalent to stup(ēre) to be numb or stunned + -idus -id4

Related forms

Can be confused

ignorant stupid

Synonym study

1. See dull. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for stupidly

British Dictionary definitions for stupidly


/ (ˈstjuːpɪd) /


lacking in common sense, perception, or normal intelligence
(usually postpositive) stunned, dazed, or stupefiedstupid from lack of sleep
having dull mental responses; slow-witted
trivial, silly, or frivolous


informal a stupid person

Derived Forms

stupidly, adverbstupidness, noun

Word Origin for stupid

C16: from French stupide, from Latin stupidus silly, from stupēre to be amazed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012