agreeable, all right, alright, copacetic(also copasetic or copesetic), ducky, fine, good, jake(slang), OK(or okay), palatable, satisfactory

delectable, delicious, delightful, dreamy, felicitous, gratifying, nice, pleasant, pleasing, scrumptious, welcomeacceptable, adequate, decent, passable, tolerable

disagreeable, unsatisfactory

bad, deficient, inferior, lousy, poor, punk, substandard, unacceptable, wanting, wretchedmediocre, middling, second-class, second-rate