The word(s) "opponents" appears 3 time(s) in 3 verse(s) in Quran in Mohsin Khan translation.

(1) And of mankind there is he whose speech may please you (O Muhammad صلى الله عليه وسلم), in this worldly life, and he calls Allah to witness as to that which is in his heart, yet he is the most quarrelsome of the opponents.

(2) Nay, but they (the so-called gods) will deny their worship of them, and become opponents to them (on the Day of Resurrection).

(3) These two opponents (believers and disbelievers) dispute with each other about their Lord: then as for those who disbelieved, garments of fire will be cut out for them, boiling water will be poured down over their heads.