noun

an amount of something that is more than necessary, permitted, or desirable.

are you suffering from an excess of stress in your life?

surplus,surfeit,overabundance,superabundance,superfluity,oversufficiency,profusion,plethora,glut,too much,more than enough,enough and to spare,nimiety,remainder,rest,residue,remaining quantity,overflow,overspill,leftovers,remnants,leavings,extra,difference,residuum

adjective

exceeding a prescribed or desirable amount.

trim any excess fat off the meat

surplus,superfluous,spare,redundant,unwanted,unneeded,unused,excessive,leftover,extra,additional,reserve