Found 2 items, similar to harmfulness.
English → English (WordNet) Definition: harmfulness harmfulness n 1: destructiveness that causes harm or injury [syn: injuriousness] 2: the quality of being noxious [syn: noisomeness, noxiousness]
English → English (gcide) Definition: Harmfulness Harmful \Harm"ful\ (h[aum]rm"f[.u]l), a. Full of harm; injurious; hurtful; mischievous. “ Most harmful hazards.” --Strype. --Harm"ful*ly, adv. -- Harm"ful*ness, n. [1913 Webster]