كَفَّار

Appears 5 times in the Quran. (Root: كفر)
  1. Allah does not bless usury, and He causes charitable deeds to prosper, and Allah does not love any ungrateful sinner.

  2. And He gives you of all that you ask Him; and if you count Allah's favors, you will not be able to number them; most surely man is very unjust, very ungrateful.

  3. Now, surely, sincere obedience is due to Allah (alone) and (as for) those who take guardians besides Him, (saying), We do not serve them save that they may make us nearer to Allah, surely Allah will judge between them in that in which they differ; surely Allah does not guide him aright who is a liar, ungrateful.

  4. Do cast into hell every ungrateful, rebellious one,

  5. For surely if Thou leave them they will lead astray Thy servants, and will not beget any but immoral, ungrateful (children)