indulgence (in alcohol, women, etc.); debauchery; dissipation
酒に耽溺して家庭が崩壊した。
Indulging in alcohol, their family fell apart.
快楽への耽溺は身を滅ぼすと戒められた。
They were warned that indulgence in pleasure would bring ruin.
耽溺から抜け出すには強い意志が必要だ。
Strong willpower is needed to break free from indulgence.