/ Dictionary / Index U unnatural: Meaning and Definition of Find definitions for: un•nat•u•ral Pronunciation: (un-nach'ur-ul, -nach'rul), [key] — adj. contrary to the laws or course of nature. at variance with the character or nature of a person, animal, or plant. at variance with what is normal or to be expected: the unnatural atmosphere of the place. lacking human qualities or sympathies; monstrous; inhuman: an obsessive and unnatural hatred. not genuine or spontaneous; artificial or contrived: a stiff, unnatural manner. lacking a valid or natural claim; illegitimate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unnatural (Thesaurus) unnamed unnecessary Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language