no duh

UK/nəʊ ˈdəː/US/noʊ ˈdə/

interjection

An expression or exclamation that something is exceedingly obvious or apparent, or that one would have to be extremely foolish not to realize something immediately.

“It says here not to drive with the sun shade covering the windshield of your car. No duh!”

Similar
no shitno shit, Sherlockthank youCaptain Obvious & you're welcomeLieutenant Sarcasmno reallyoh reallyreally
First used 1962.

Meanings

interjection

alternative no doi · alternative no doy · alternative no dah · alternative no dar · alternative no der · alternative no derr · alternative no dur · alternative no durr

  1. UScolloquialsarcasticAn expression or exclamation that something is exceedingly obvious or apparent, or that one would have to be extremely foolish not to realize something immediately.First known use 1962.

    It says here not to drive with the sun shade covering the windshield of your car. No duh!

    3 more examples

    A long pause was followed by Hannah saying, “Well, no duh!” “What?” “That sign. Did you read that sign?” “No, what did it say?” “It said ‘State Prison Next Exit: Do Not Pick Up Hitchhikers.’ That′s why I said, no duh! Like they have to tell people not to pick up hitchhikers.” “That was a strange sign,” I agreed.

    2005, Robin Jones Gunn, Gardenias For Breakfast, page 99

    “I could maybe buy that one, for some who has advanced up the scale of faith. However, I have trouble believing it would be sellable to the general population.” “That′s a big ‘no duh.’ Now, I hope you don′t mind me keeping your feet to the fire. Let′s get back to your idea that maybe there are multiple paths to Heaven. And by the way, I hope you know you′re making me dizzy.”

    2008, Donald James Parker, All the Stillness of the Wind, page 127

    Ultimately, humans aren′t wholly monogamous either. (Can we hear a “No duh,” from the bleacher seats?)

    2010, Joselin Linder, Elena Donovan Mauer, Have Sex Like You Just Met - No Matter How Long You've Been Together, page xvii

    Synonyms: no shit, no shit, Sherlock, thank you, Captain Obvious & you're welcome, Lieutenant Sarcasm, no really, oh really, really

Synonyms & antonyms

interjectionAn expression or exclamation that something is exceedingly obvious or apparent, or that one would have to be extremely foolish not to realize something immediately.

Similar

Origin

Cite this entry
APA

no duh. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/no%20duh

MLA

“no duh.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/no%20duh. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “no duh,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/no%20duh.

Source: no duh on Wiktionary, CC BY-SA 4.0.