プログレッシブ和英中辞典(第4版)の解説
えこじ【依×怙地】
obstinacy; stubbornness
えこじな obstinate; stubborn；《口》 contrary [kəntrέəri]
えこじになる
become obstinate
提案に内心は賛成なのにえこじになって反対意見を述べた
He was really for the proposal, but spoke against it out of sheer orneriness.
あの子は妙にえこじなところがある
That boy has a contrary streak in him.