[stoo-pid, styoo‐]

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 formsstu·pid·ly, adverbstu·pid·ness, nounun·stu·pid, adjectiveun·stu·pid·ly, adverbun·stu·pid·ness, noun
Can be confusedignorant stupid

Synonym study

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

Related Words for stupidly

carelessly, obtusely, rashly, stubbornly, idiotically

Examples from the Web for stupidly

Contemporary Examples of stupidly

Historical Examples of stupidly

  • Stupidly, being taken by surprise, and being new at it, I fired at once at its head.

  • Stupidly Smith stared at the spot from which she had disappeared.

    The Tree of Life

    Catherine Lucille Moore

  • Stupidly he spoke, his hands deep in his pockets, his head rolled forward.


    Frank Norris

  • Stupidly enough, the man comprehended some part of his admonishment.

    The Day of Days

    Louis Joseph Vance

  • Stupidly misunderstanding, he thought that Sonny was merely trying to avoid the child.

    The House in the Water

    Charles G. D. Roberts

British Dictionary definitions for stupidly



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 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 stupidly



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