Quality

Default (for items without special names, as below): poor, inferior, decent, fine, perfect

Weapons: crude, rough, decent, fine, masterwork

Arrows: curved, rough, decent, fine, superior

Clothing: crude, rough, decent, fine, masterwork

Containers: leaky, rough, decent, fine, beautiful

Food: awful, bland, decent, tasty, delicious

Fresh animal skin: ragged, harsh, decent, fine, superior

(A "decent" quality item will not show its quality in the item name.)

Source: Sami at this topic http://z3.invisionfree.com/UrW_forum/index.php?showtopic=2877#entry22016005