Na-adjective (keiyodoshi), Noun
thoughtless; reckless; rash; indiscriminate; indiscreet
Usually written using kana alone
Na-adjective (keiyodoshi), Adverb taking the 'to' particle, Noun
excessive; unreasonable; immoderate; absurd
Usually written using kana aloneoften used adverbially as むやみに or むやみと
Also written 無暗【むやみ】