魅力 みりょく てき機能 きのうじゃなかったです
miryoku teki kinōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 魅力的機能

1. Wasn't charming.; Wasn't attractive.; Wasn't appealing.

Past/Perfective
Negative
Polite
Casual Register
Computing