The word(s) "adultery" appears 2 time(s) in 2 verse(s) in Quran in Mohsin Khan translation.

(1) "O sister (i.e. the like) of Harun (Aaron) ! Your father was not a man who used to commit adultery, nor your mother was an unchaste woman."

(2) O wives of the Prophet! You are not like any other women. If you keep your duty (to Allah), then be not soft in speech, lest he in whose heart is a disease (of hypocrisy, or evil desire for adultery) should be moved with desire, but speak in an honourable manner.