余計よけい
yokei

na-Adjective

1. extra; more; too much; too many; excessive; superfluous; spare; surplus

余計よけい努力どりょく結果けっか、彼かれ血圧けつあつ通常つうじょう以上いじょうがった。
yokēna doryokuno kekka kareno ketsuatsuwa tsūjōijōni agatta.
The extra effort raised his blood pressure above normal.
na-Adjective

2. unnecessary; needless; uncalled-for; unwanted; uninvited

こんな余計よけい機能きのうなんでつけたんだろう。
konna yokēna kinōnande tsuketa ndarō.
What did they add this needless function for?
Adverb

3. all the more; even more

そうするとよけいきずをとがめるよ。
sōsuruto yokei kizuo togameruyo.
It will aggravate the wound.