scrupule

Quand une chose a été dite et bien dite, n'ayez aucun scrupule, prenez-la, copiez.

When a thing has been said and well said, have no scruple: take it and copy it.

Il n'a eu aucun scrupule à le faire.

He had no qualms in doing so.

Tom n'a eu aucun scrupule à tricher lors du test.

Tom had no qualms about cheating on the test.

Certaines personnes n'ont absolument aucun scrupule.

Some people are completely unscrupulous.