Innocuous \In*noc"u*ous\, a. [L. innocuus; in- not + nocuus hurtful, fr. nocere to hurt. See {Innocent}.] Harmless; producing no ill effect. [1913 Webster] A patient, innocuous, innocent man. --Burton. -- {In*noc"u*ous*ly}, adv. -- {In*noc"u*ous*ness}, n. [1913 Webster] Where the salt sea innocuously breaks. --Wordsworth. [1913 Webster]