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Synonyms

foolhardy

American  
[fool-hahr-dee] / ˈfulˌhɑr di /

adjective

foolhardier, foolhardiest
  1. recklessly or thoughtlessly bold; foolishly rash or venturesome.

    Synonyms:
    incautious, heedless, headlong, impetuous

foolhardy British  
/ ˈfuːlˌhɑːdɪ /

adjective

  1. heedlessly rash or adventurous

"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

Other Word Forms

Etymology

Origin of foolhardy

1175–1225; Middle English folhardy < Old French fol hardi. See fool 1, hardy 1

Explanation

If you decide you are going to scale Mt. Everest next weekend without any training or experience, that would be a foolhardy decision. Use the adjective foolhardy to describe someone who rushes into action without considering the consequences. Foolhardy is a combination of the noun fool and the adjective hardy, meaning "brave" or "bold." Put them together and you’ve got “foolishly brave.” Someone who is foolhardy throws caution to the wind and takes reckless chances. A foolhardy mistake is typically the result of this kind of impulsive behavior. But foolhardy doesn’t always imply foolishness or stupidity; foolhardy can convey courage and romance, as in the case of a foolhardy passion or desire.

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Vocabulary lists containing foolhardy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Walk into one such event and you are perpetually being sold on a single, perhaps foolhardy decision that could change at least the next few years of your life.

From Slate Jun. 18, 2026

His attempts to strike out independently and build his own house fail spectacularly—the first in a storm of lightning and winged ants, the second in a foolhardy scheme to clear the surrounding brush with fire.

From The Wall Street Journal Jun. 10, 2026

Valuing a company that hasn’t made money at $1.8 trillion seems aggressive at best, foolhardy at worst.

From Barron's Jun. 3, 2026

So they’ve been trying to talk their leaders out of this foolhardy mission.

From Salon Mar. 13, 2026

I was bold, but not so foolhardy as to think there was something worthwhile on the other side of the barrier fence that kept the dead out.

From "Dread Nation" by Justina Ireland

Only the foolhardiest would step up to Black Twitter, for example, and demand that it be more welcoming to non–African Americans.

From Slate Mar. 15, 2018

They leaned this way and that, the fronts of some thrust outward at an angle to forbid any but the foolhardiest from passing underneath.

From Lady Good-for-Nothing by Quiller-Couch, Arthur Thomas, Sir

We cooked some eggs on it, to show our unconcern, and while we were cooking them up came an American, who had pitched camp in the foolhardiest spot.

From True Tilda by Quiller-Couch, Arthur Thomas, Sir

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