What is the Latin word for fool-hardy?

The usual Latin words for “fool-hardy” are stolidus, temerārius. The right choice depends on the sense; see the distinctions below.

English → Latin

“fool-hardy” in Latin

stolidusstupid, foolish temerāriusaccidental; casual, rash, heedless; reckless

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

fool-hardy

stolide or stulte ferox: stolida audacia ferox: stolidae audaciae. (The words are found in this connection and order.) stolidus feroxque: temerarius (rash).

Quick answer

What is the Latin word for fool-hardy?: The usual Latin words for “fool-hardy” are stolidus, temerārius. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.