Noisome, noxious. These words have to a great extent been interchanged; but there is a tendency to make a distinction between them, applying noxious to things that inflict evil directly; as, a noxious plant, noxious practices, etc, and noisome to things that operate with a remoter influence; as, noisome vapors, a noisome pestilence, etc. Noisome has the additional sense of disqusting. A garden may be free from noxious weeds or animals; but, if recently covered with manure, it may be filled with a noisome smell.
Origin: For noysome, fr. Noy for annoy. See Annoy.