The word(s) "less" appears 123 time(s) in 122 verse(s) in Quran in Muhammad Habib Shakir translation.

(41) And We cut them up on the earth into parties, (some) of them being righteous and (others) of them falling short of that, and We tried them with blessings and misfortunes that they might turn.

(42) And when your Lord brought forth from the children of Adam, from their backs, their descendants, and made them bear witness against their own souls: Am I not your Lord? They said: Yes! we bear witness. Lest you should say on the day of resurrection: Surely we were heedless of this.

(43) And certainly We have created for hell many of the jinn and the men; they have hearts with which they do not understand, and they have eyes with which they do not see, and they have ears with which they do not hear; they are as cattle, nay, they are in worse errors; these are the heedless ones.

(44) And remember your Lord within yourself humbly and fearing and in a voice not loud in the morning and the evening and be not of the heedless ones.

(45) And whoever shall turn his back to them on that day-- unless he turn aside for the sake of fighting or withdraws to a company-- then he, indeed, becomes deserving of Allah's wrath, and his abode is hell; and an evil destination shall it be.

(46) It is not fit for a prophet that he should take captives unless he has fought and triumphed in the land; you desire the frail goods of this world, while Allah desires (for you) the hereafter; and Allah is Mighty, Wise.

(47) Their Lord gives them good news of mercy from Himself and (His) good pleasure and gardens, wherein lasting blessings shall be theirs;

(48) Surely those who do not hope in Our meeting and are pleased with this world's life and are content with it, and those who are heedless of Our communications:

(49) Say: Is there any of your associates who guides to the truth? Say: Allah guides to the truth. Is He then Who guides to the truth more worthy to be followed, or he who himself does not go aright unless he is guided? What then is the matter with you; how do you judge?

(50) And you are not (engaged) in any affair, nor do you recite concerning it any portion of the Quran, nor do you do any work but We are witnesses over you when you enter into it, and there does not lie concealed from your Lord the weight of an atom in the earth or in the heaven, nor any thing less than that nor greater, but it is in a clear book.