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

(1) So (as a result of that) they deny (with ungratefulness) that (Allah's Favours) which We have bestowed on them! Then enjoy yourselves (your short stay), but you will come to know (with regrets).

(2) And Allah puts forward the example of a township (Makkah), that dwelt secure and well-content: its provision coming to it in abundance from every place, but it (its people) denied the Favours of Allah (with ungratefulness). So Allah made it taste extreme of hunger (famine) and fear, because of that (evil, i.e. denying Prophet Muhammad صلى الله عليه و سلم) which they (its people) used to do .