harum-scarum Definition

harum-scarum
adj

1. Wild and thoughtless; reckless.

Thesaurus: careless, reckless, irresponsible, rash, impetuous, haphazard, helter-skelter, hasty, ill-considered, imprudent, wild; Antonym: sensible.

adverb

1. Recklessly.

noun

1. Someone who is wild, impetuous or rash.

Etymology: 17c: from hare in obsolete sense ‘harass' + scare.