also: よくふかい
i-adjective
greedy; avaricious; covetous
Describes a person who strongly desires more than they need, often with a negative connotation.
彼は欲深いから、どんなに儲けても満足しない。
He is greedy, so no matter how much he earns, he is never satisfied.
欲深
Greedy people end up losing in the end.