hard (on the ears); offensive (to the ear); rasping; rough; harsh; grating; jarring; cacophonous
蚊の羽音が耳障りだ。
The mosquito's buzzing is grating.
彼の声が耳障りに響いた。
His voice sounded grating.
隣の工事の騒音が耳障りで、仕事に集中できなかった。
The construction noise next door was so jarring that I couldn't concentrate on work.