person who commits a crime or crimes
"a criminal waste of talent"
"a deplorable act of violence"
"adultery is as reprehensible for a husband as for a wife"
"criminal in the sight of God and man"
"a criminal offense"
That kind of thing is really criminal; it's against the public good.
出自： G. K. Chesterton
It would have been criminal to spend each moment..waiting on the beach in a country which has so much to explore.