Hello Ruby, As Marie mentioned "excessive" is an adjective, it is not a noun. "Excess" is the noun and could be an adjective as well. The noun for "excessive" is " excessiveness ". Both " excess" and "excessive" have basically the same meaning, yet they could be different components of the sentence ( when excess is a noun not an adjective). They both mean beyond the normal limits, more than normal or necessary, inordinate, an overindulgence,immoderately. Excess ( as a noun) an excess of luggage . Here it means the number of luggage is beyond the permitted limits. an excess of tolerance. Here the degree of tolerance is beyond the normal amount. Excess ( as an adjective): Trying to lose excess weight The weight is more than the normal limits. ( Here "excessive" could be used as well). Excessive: It is only an adjective. They asked for excessive charges.

Hello Ruby "excess" is a noun and means extravagance, overindulgence, surplus "excessive" is an adjective which means dear, exceeding, exorbitant, overmuch, stiff or immoderate... As you see it is not really the same thing.