無所不用其極

Simplified: 无所不用其极

wúsuǒbùyòngqíjí ㄨˊ ㄙㄨㄛˇ ㄅㄨˋ ㄩㄥˋ ㄑㄧˊ ㄐㄧˊ

    • committing all manner of crimes
    • completely unscrupulous

Character by character

Sources