i-adjective
really terrible; awful; extremely harsh
Emphatic colloquial form of ひどい, used to stress how bad something is. Often carries a stronger emotional charge than ひどい alone.
昨日のテストはこっぴどい点数だった。
I got a really terrible score on yesterday's test.
彼はこっぴどい風邪をひいて寝込んでいる。
He's in bed with an awful cold.