/ Dictionary / Index P promiscuous: Meaning and Definition of Find definitions for: pro•mis•cu•ous Pronunciation: (pru-mis'ky-us), [key] — adj. characterized by or involving indiscriminate mingling or association, esp. having sexual relations with a number of partners on a casual basis. consisting of parts, elements, or individuals of different kinds brought together without order. indiscriminate; without discrimination. casual; irregular; haphazard. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: promiscuous (Thesaurus) promiscuity promise 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