EXCESS

[noun] [U], [adjective] [not gradable] - (an amount which is) more than acceptable, expected or reasonableAn excess of enthusiasm is not always a good thing. [U]They both eat to excess (= a lot more than they need).There will be an increase in tax for those earning in excess of (= more than) twice the national average wage. [U]We might seem to be carrying excess supplies but they would be necessary in the case of an emergency. [before noun]Because our suitcases were so heavy we had to pay excess luggage/baggage (= the money charged because your bags weigh more than the allowed amount).