プログレッシブ和英中辞典(第4版)の解説
むやみ【無闇】
❶〔軽はずみなこと〕むやみな 〔思慮のない〕thoughtless；〔軽率な〕rash
むやみなことを言う
speak thoughtlessly／make unthinking remarks
あの人にむやみなことは言えない
We must 「be careful [watch our words] in talking with him.
彼女はむやみなことをする人ではない
She is not the sort of person to act rashly.
むやみに急ぐ
make undue haste ((to do))
むやみに信じる
believe too readily
むやみに人と約束をするものではない
Don't make rash promises.
❷〔度を越すこと〕むやみな（に） 〔過度に〕excessive(ly), immoderate(ly)；〔不当に〕unreasonable (unreasonably)
この町は物価がむやみに高い
Prices are unduly [unreasonably/excessively] high in this town.
あいつはむやみに末の娘を可愛がる
He dotes on his youngest daughter.
むやみやたら
むやみやたらに食べると腹をこわすぞ
If you eat too much, you will get an upset stomach.
あの人はむやみやたらにいばり散らす
He throws his weight around unduly.