まあいいやMeanings1expressionoh well; fine, I guess; alright thencolloquial›Casual, resigned acceptance or dismissal. Often used when giving up on something or settling for a less-than-ideal outcome.雨あめが降ふってきたけど、まあいいや。It started raining, but oh well.完かん璧ぺきじゃないけど、まあいいや。It's not perfect, but fine, I guess.