airbrain

air·brain
A1I1R1B3R1A1I1N1
/ˈeɹˌbɹeɪn//ˈɛːˌbɹeɪn/UK/ˈɛːbɹeɪn/US/ˈɛɚˌbɹeɪn/

noun

An airhead; a foolish, silly, or unintelligent person.

First used 20th c.Scrabble 10
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Meanings

nounairbrain (plural airbrains)

plural airbrains

  1. derogatoryslanguncommonAn airhead; a foolish, silly, or unintelligent person.First known use 20th c.

    He was tough, and courageous, but he wasn’t an airbrain.

    1984, Thomas Luke, chapter 1, in Condor, London: W. H. Allen & Co., page 15
    2 more examples

    "You airbrain," I screamed. "You know you're not invited to my party. So bug off. And don't you dare show up!" I added.

    1983 September 29, Jeanne Betancourt, chapter 7, in The Rainbow Kid, Avon Books, page 69

    It was a boldfaced lie, but if J.B. wanted to talk to an airbrain like his daughter about our secret projects, he could.

    1988, Lee Anderson, chapter 1, in Family Secrets, Avalon Books, pages 6-7

Origin

From air + brain.

Full word history & related roots →
Cite this entry
APA

airbrain. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/airbrain

MLA

“airbrain.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/airbrain. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “airbrain,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/airbrain.

Source: airbrain on Wiktionary, CC BY-SA 4.0.