DictionaryAI

stupid

STOO-pid/ˈst(j)u.pɪd/SaySTYOO-pidUK/ˈstjuː.pɪd/AUS/ˈʃt͡ʃjʉː.pɪd/

Noun pluralstupids

10 meanings of stupid

Practice

  1. 1
    not smartadjective
    Lacking intelligence; slow to understand or learn.

    The villain is written as stupid enough to fall for every trick.

    He is not stupid, just inexperienced.

    UsageBoth stupider and more stupid are correct, as are stupidest and most stupid.

    Similarunintelligent, dumb, dim, dense, slow

    Oppositeintelligent, smart, clever, bright

    Note

    Living beings are the target here: a person, an animal, even a big jellyfish caught in a net. When the judgment falls on an act rather than on whoever did it, the word has moved to the "foolish act" meaning.

  2. 2
    badly judgedadjective
    Showing the lack of intelligence or good sense of whoever did it.

    Skipping the safety check turned out to be a stupid decision.

    He apologized for the stupid joke that hurt his friend.

    UsageOften it was stupid of someone to do something.

    Similarfoolish, silly, idiotic, senseless, dumb

    Oppositewise, sensible, smart, prudent

  3. 3
    annoyingadjective
    Unpleasant or annoying in the speaker's view; an expression of irritation rather than a judgment of intelligence.

    The stupid printer jammed for the third time today.

    Why won't this stupid door just open?

    UsageUsually goes directly before the noun: this stupid printer.

    Similarannoying, wretched, blasted, darn, pesky

  4. 4
    nouncountable or uncountable
    A foolish or unintelligent person.

    "Quit it, stupid, you're going to knock the whole tower over," his older brother said.

    Watch where you're going, stupid, you nearly knocked me over.

    UsageMostly used to address someone rudely: Quit it, stupid.

    Similaridiot, fool, dummy, moron, dimwit

    Oppositegenius, brain

    Note

    The adjective becomes a name-calling noun and behaves like one. Saki's story "The Strategist" has "You stupid!", and Deep Purple's "Smoke on the Water" (1972) uses it, with an article, for an unnamed fool with a flare gun.

Practice

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Origin

From Middle French stupide, from Latin stupidus ("struck senseless, amazed"), from the verb stupeō ("to be amazed or struck senseless"). This traces back to a Proto-Indo-European root meaning "to push" or "hit," and is perhaps related to Old English stoppian ("to block, stop").

Checked 1 Nov 2026 · 4 facts

  • English stupid comes from Middle French stupide, from Latin stupidus, meaning struck senseless or amazed. en.wiktionary.org
  • Latin stupidus derives from stupeō, meaning to be amazed or struck senseless. en.wiktionary.org
  • The word ultimately derives from a Proto-Indo-European root meaning to push or hit. en.wiktionary.org
  • Old English stoppian meant to block or stop. en.wiktionary.org