adjective
1.
going beyond a normal or acceptable limit
spend an excessive amount on clothes
Synonyms: dizzy, exorbitant, extravagant, extreme, immoderate, inordinate, sky-high, steep, stiff, stratospheric, supernatural, towering, unconscionable, undue, unmeasurable
Related Word: boundless, limitless, unbounded; over, overboard, overmuch, overweening; super
Idioms: out of bounds
Contrasted words: exiguous, meager, narrow, scant, scanty, skimpy, sparse, tight
Antonyms: deficient
2.
given to personal excesses
an excessive drinker, often drunk and never quite sober
Synonyms: immoderate, inordinate, intemperate, overindulgent, unrestrained, untempered
Related Word: extravagant; indulgent, self-indulgent; dissipated, prodigal
Contrasted words: conservative, moderate, sober, temperate
Antonyms: restrained