unsuited, not suited, unfit
この部屋は暑すぎて、仕事には不向きだ。
This room is too hot and unsuitable for work.
この魚は食用には不向きです。
This fish is not suitable for eating.
彼女はその仕事に不向きだ。
She is not suited for that job.
あの人はあの仕事には全く不向きな人です。
That person is completely unsuited for that job.
僕は君に不向きだ
I'm not right for you.
— どん底作家の人生に幸あれ! (2019)
彼はあの仕事にはまったく不向きな人です。
He is completely unsuited for that job.