The Collaborative International Dictionary of English v.0.48:
Immoderateness \Im*mod"er*ate*ness\, n. The quality of being immoderate; excess; extravagance. --Puller. [1913 Webster]WordNet (r) 3.0 (2006):
immoderateness n 1: the quality of being excessive and lacking in moderation [syn: immoderation, immoderateness] [ant: moderateness, moderation]