The word(s) "worse" appears 12 time(s) in 10 verse(s) in Quran in Muhammad Pickthal translation.

(1) Then, even after that, your hearts were hardened and became as rocks, or worse than rocks, for hardness. For indeed there are rocks from out which rivers gush, and indeed there are rocks which split asunder so that water floweth from them. And indeed there are rocks which fall down for the fear of Allah. Allah is not unaware of what ye do.

(2) And slay them wherever ye find them, and drive them out of the places whence they drove you out, for persecution is worse than slaughter. And fight not with them at the Inviolable Place of Worship until they first attack you there, but if they attack you (there) then slay them. Such is the reward of disbelievers.

(3) They question thee (O Muhammad) with regard to warfare in the sacred month. Say: Warfare therein is a great (transgression), but to turn (men) from the way of Allah, and to disbelieve in Him and in the Inviolable Place of Worship, and to expel His people thence, is a greater with Allah; for persecution is worse than killing. And they will not cease from fighting against you till they have made you renegades from your religion, if they can. And whoso becometh a renegade and dieth in his disbelief: such are they whose works have fallen both in the world and the Hereafter. Such are rightful owners of the Fire: they will abide therein.

(4) And let not those who hoard up that which Allah hath bestowed upon them of His bounty think that it is better for them. Nay, it is worse for them. That which they hoard will be their collar on the Day of Resurrection. Allah's is the heritage of the heavens and the earth, and Allah is Informed of what ye do.

(5) Shall I tell thee of a worse (case) than theirs for retribution with Allah? (worse is the case of him) whom Allah hath cursed, him on whom His wrath hath fallen and of whose sort Allah hath turned some to apes and swine, and who serveth idols. Such are in worse plight and further astray from the plain road.

(6) Already have We urged unto hell many of the jinn and humankind, having hearts wherewith they understand not, and having eyes wherewith they see not, and having ears wherewith they hear not. These are as the cattle - nay, but they are worse! These are the neglectful.

(7) They said: If he stealeth, a brother of his stole before. But Joseph kept it secret in his soul and revealed it not unto them. He said (within himself): Ye are in worse case, and Allah knoweth best (the truth of) that which ye allege.

(8) Say: As for him who is in error, the Beneficent will verily prolong his span of life until, when they behold that which they were promised, whether it be punishment (in the world), or the Hour (of doom), they will know who is worse in position and who is weaker as an army.

(9) And when Our revelations are recited unto them, thou knowest the denial in the faces of those who disbelieve; they all but attack those who recite Our revelations unto them. Say: Shall I proclaim unto you worse than that? The Fire! Allah hath promised it for those who disbelieve. A hapless journey's end!

(10) Those who will be gathered on their faces unto hell: such are worse in plight and further from the right road.