stupid

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

adjective, stu·pid·er, stu·pid·est.

noun

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 confusedignorant stupid

Synonym study

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

British Dictionary definitions for stupidness

stupid

/ (ˈstjuːpɪd) /

adjective

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

noun

informal a stupid person
Derived Formsstupidly, 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

Word Origin and History for stupidness

stupid


adj.

1540s, "mentally slow," from Middle French stupide, from Latin stupidus "amazed, confounded," literally "struck senseless," from stupere "be stunned, amazed, confounded," from PIE *(s)tupe- "hit," from root *(s)teu- (see steep (adj.)).

Native words for this idea include negative compounds with words for "wise" (cf. Old English unwis, unsnotor, ungleaw), also dol (see dull), and dysig (see dizzy). Stupid retained its association with stupor and its overtones of "stunned by surprise, grief, etc." into mid-18c. The difference between stupid and the less opprobrious foolish roughly parallels that of German töricht vs. dumm but does not exist in most European languages.

Online Etymology Dictionary, © 2010 Douglas Harper