Adjective excess has 1 sense
  1. excess, extra, redundant, spare, supererogatory, superfluous, supernumerary, surplus - more than is needed, desired, or required; "trying to lose excess weight"; "found some extra change lying on the dresser"; "yet another book on heraldry might be thought redundant"; "skills made redundant by technological advance"; "sleeping in the spare room"; "supernumerary ornamentation"; "it was supererogatory of her to gloat"; "delete superfluous (or unnecessary) words"; "extra ribs as well as other supernumerary internal parts"; "surplus cheese distributed to the needy"
    Antonym: necessary (indirect, via unnecessary)
,Noun excess has 4 senses
  1. excess, surplus, surplusage, nimiety - a quantity much larger than is needed
    --1 is a kind of overabundance, overmuch, overmuchness, superabundance
  2. excess, excessiveness, inordinateness - immoderation as a consequence of going beyond sufficient or permitted limits
    --2 is a kind of immoderation, immoderateness
    --2 has particulars:
     extravagance, extravagancy; exorbitance, outrageousness; overplus, plethora, superfluity, embarrassment
  3. surfeit, excess, overabundance - the state of being more than full
    --3 is a kind of fullness
  4. overindulgence, excess - excessive indulgence; "the child was spoiled by overindulgence"
    --4 is a kind of indulgence, indulging, pampering, humoring