inordinate

Synonyms: disproportionate dizzying exorbitant extortionate extreme gratuitous immoderate intemperate irrational outrageous overindulgent overmuch preposterous supererogatory superfluous surplus too much towering uncalled-for unconscionable uncurbed undue unmeasurable unreasonable unrestrained untempered unwarranted wanton wasteful

Antonyms: moderate ok enough reasonable warranted