The word(s) "idle" appears 5 time(s) in 5 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) As in the case of those before you: they were mightier than you in power, and more flourishing in wealth and children. They had their enjoyment of their portion: and ye have of yours, as did those before you; and ye indulge in idle talk as they did. They!- their work are fruitless in this world and in the Hereafter, and they will lose (all spiritual good).

(2) Not for (idle) sport did We create the heavens and the earth and all that is between!

(3) How many populations have We destroyed, which were given to wrong-doing? They tumbled down on their roofs. And how many wells are lying idle and neglected, and castles lofty and well-built?

(4) But there are, among men, those who purchase idle tales, without knowledge (or meaning), to mislead (men) from the Path of Allah and throw ridicule (on the Path): for such there will be a Humiliating Penalty.

(5) We created not the heavens, the earth, and all between them, merely in (idle) sport: