yet, behold, this [rejection] will indeed become a source of bitter regret for all who deny the truth [of God's revelation] –

and it will surely be a source of regret for the disbelievers.

It is a cause of great distress to the unbelievers.

wa-innahu laḥasratun ʿalā l-kāfirīn

And indeed, it (is) surely a regret upon the disbelievers.

yet, behold, this [rejection] will indeed become a source of bitter regret for all who deny the truth [of God's revelation] –

And lo! it is indeed an anguish for the disbelievers

But truly (Revelation) is a cause of sorrow for the Unbelievers

and it will surely be a source of regret for the disbelievers.

It is a cause of great distress to the unbelievers.

it will be a source of bitter regret for those who deny the trut

And most surely it is a great grief to the unbelievers

And, truly, it will be a regret for ones who are ungrateful.

It means despair for disbelievers;

and indeed it (this Qur’an) will be an anguish for the disbelievers.

It is a source of regret indeed for the disbelievers

And undoubtedly it certainly (is a source of) disappointment for the disbelievers

and for such disbelievers it is indeed a cause of despair

And it is surely a source of grief for the unbelievers

And surely it is indeed a (source of) regret to the disbelievers

and (on the Day of Judgment) this will be a great source of regret for the unbelievers

And surely, it is a cause of remorse for the disbelievers

And behold, this denial will become a source of regret for the rejecters

Thus, this Qur´an will definitely be the source of anguish for the disbelievers

But truly, it (the Reminder, this Quran) is a cause of sorrow for the unbelievers

And indeed, it will be [a cause of] regret upon the disbelievers

And that it is a distress for the rejecters

this will be a source of bitter regret for the disbelievers

And verily it shall be an occasion of anguish Unto the infidels

It is surely the nemesis of unbelievers

It is a cause of great distress to those who are kafir.

It will surely be a bitter regret for the unbelievers

And indeed it will be a [matter of] regret for the faithless

And verily, it is a source of great grief to the unbelievers

And it is certainly (cause of) a regret for the disbelievers

But truly it is a cause of sorrow for the unbelievers

and it will be a source of severe regret for the disbelievers.