The word(s) "adversary" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Pickthal translation.

(1) Thus have We appointed unto every prophet an adversary - devils of humankind and jinn who inspire in one another plausible discourse through guile. If thy Lord willed, they would not do so; so leave them alone with their devising;

(2) They said: We suffered hurt before thou camest unto us, and since thou hast come unto us. He said: It may be that your Lord is going to destroy your adversary and make you viceroys in the earth, that He may see how ye behave.