foolhardy

adj., -di·er, -di·est.
Unwisely bold or venturesome; rash. See synonyms at reckless.

[Middle English folhardi, from Old French fol hardi : fol, fool; see fool + hardi, bold; see hardy¹.]

foolhardily fool'har'di·ly adv.
foolhardiness fool'har'di·ness n.

adjective

Characterized by unthinking boldness and haste: brash, harum-scarum, hasty, headlong, hotheaded, ill-considered, impetuous, improvident, impulsive, incautious, madcap, precipitant, precipitate, rash¹, reckless, slapdash, temerarious, unconsidered. See careful/careless.

adj

Definition: impetuous, rash
Antonyms: careful, cautious, discreet, thoughtful, wary

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IN BRIEF: Adventurous or bold but lacking in good sense.

It is foolhardy to go into a cave without a rope to rescue someone who is lost.

Dansk (Danish)
adj. - dumdristig

Nederlands (Dutch)
doldriest, onbezonnen

Français (French)
adj. - téméraire, imprudent

Deutsch (German)
adj. - tollkühn, draufgängerisch

Ελληνική (Greek)
adj. - παράτολμος, απερίσκεπτος

Italiano (Italian)
temerario

Português (Portuguese)
adj. - imprudente

Русский (Russian)
отчаянный, сорвиголова

Español (Spanish)
adj. - temerario, arriesgado, aventurado

Svenska (Swedish)
adj. - dumdristig

中文（简体）(Chinese (Simplified))
愚勇的, 有勇无谋的

中文（繁體）(Chinese (Traditional))
adj. - 愚勇的, 有勇無謀的

한국어 (Korean)
adj. - 무모한, 앞뒤를 헤아리지 않는

日本語 (Japanese)
adj. - 向こう見ずな

العربيه (Arabic)
‏(صفه) أحمق , متهور‏

עברית (Hebrew)
adj. - ‮נועז, פזיז, נמהר‬

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