/ Dictionary / Index E extramarital: Meaning and Definition of Find definitions for: ex•tra•mar•i•tal Pronunciation: (ek"stru-mar'i-tl), [key] — adj. pertaining to sexual relations with someone other than one's spouse: extramarital affairs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: extramarital (Thesaurus) extrality extrametrical Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language