The word(s) "unseen" appears 50 time(s) in 49 verse(s) in Quran in Mohsin Khan translation.

(11) They (the hypocrites) will present their excuses to you (Muslims), when you return to them. Say (O Muhammad صلى الله عليه وسلم) "Present no excuses, we shall not believe you. Allah has already informed us of the news concerning you. Allah and His Messenger will observe your deeds. In the end you will be brought back to the All-Knower of the unseen and the seen, then He (Allah) will inform you of what you used to do." [Tafsir At-Tabari]

(12) And say (O Muhammad صلى الله عليه وسلم) "Do deeds! Allah will see your deeds, and (so will) His Messenger and the believers. And you will be brought back to the All-Knower of the unseen and the seen. Then He will inform you of what you used to do."

(13) And they say: "How is it that not a sign is sent down on him from his Lord?" Say: "The unseen belongs to Allah Alone, so wait you, verily, I am with you among those who wait (for Allah's Judgement)."

(14) "And I do not say to you that with me are the Treasures of Allah, nor that I know the Ghaib (unseen), nor do I say I am an angel, and I do not say of those whom your eyes look down upon that Allah will not bestow any good on them. Allah knows what is in their inner-selves (as regards belief, etc.). In that case, I should, indeed be one of the Zalimun (wrong-doers, oppressors)."

(15) This is of the news of the unseen which We reveal unto you (O Muhammad صلى الله عليه و سلم); neither you nor your people knew it before this. So be patient. Surely, the (good) end is for Al-Muttaqun (the pious - See V.2:2)

(16) And to Allah belongs the Ghaib (unseen) of the heavens and the earth, and to Him return all affairs (for decision). So worship Him (O Muhammad صلى الله عليه و سلم) and put your trust in Him. And your Lord is not unaware of what you (people) do.

(17) "Return to your father and say, 'O our father! Verily, your son (Benjamin) has stolen, and we testify not except according to what we know, and we could not know the unseen!

(18) That is of the news of the Ghaib (unseen) which We reveal to you (O Muhammad صلى الله عليه و سلم). You were not (present) with them when they arranged their plan together, and (while) they were plotting.

(19) All-Knower of the unseen and the seen, the Most Great, the Most High.

(20) And to Allah belongs the unseen of the heavens and the earth. And the matter of the Hour is not but as a twinkling of the eye, or even nearer. Truly! Allah is Able to do all things.