こっぴどい
こっ酷い
koppidoi

i-Adjective

1. (really) terrible; awful; (very) nasty; (extremely) harsh; severe

Colloquial
Usually Written in Kana
スズメバチにこっぴどくされた。
suzumebachini koppidokusasareta.
I got a nasty sting from a wasp.