adjective

more than is necessary, normal, or desirable; immoderate.

he was drinking excessive amounts of brandy

immoderate,intemperate,imprudent,overindulgent,unrestrained,unrestricted,uncontrolled,uncurbed,unbridled,lavish,extravagant,superfluous,superabundant,exorbitant,extortionate,unreasonable,outrageous,undue,uncalled for,extreme,inordinate,unwarranted,unnecessary,needless,disproportionate,too much,over the top,OTT,a bit much