run mad

verb

To go mad.

First used 15th c.
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Meanings

verbrun mad (third-person singular simple present runs mad, present participle running mad, simple past ran mad, past participle run mad)

present singular third person runs mad · participle present running mad · past ran mad

  1. archaicTo go mad.First known use 15th c.

    They might have believed that the King had run mad.

    1894, Anthony Hope, The Prisoner of Zenda
    1 more example

    Sophia shreiked and fainted on the Ground—I screamed and instantly ran mad—.

    1790, Jane Austen, “Love and Freindship”, in Juvenilia
Cite this entry
APA

run mad. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/run%20mad

MLA

“run mad.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/run%20mad. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “run mad,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/run%20mad.

Source: run mad on Wiktionary, CC BY-SA 4.0.