30 synonyms for excessive such as exorbitant, ott, and disproportionate. Excessive is an adjective, and its antonyms are moderate and insufficient.
OTT, a bit much, disproportionate, exorbitant, extortionate, extravagant, extreme, imprudent, inordinate, intemperate, lavish, mmoderate, needless, outrageous, over the top, overindulgent, superabundant, superfluous, too much, unbridled, uncalled for, uncontrolled, uncurbed, undue, unnecessary, unreasonable, unrestrained, unrestricted, and unwarranted.