/ Dictionary / Index E expostulate: Meaning and Definition of Find definitions for: ex•pos•tu•late Pronunciation: (ik-spos'chu-lāt"), [key] — -lat•ed, -lat•ing. to reason earnestly with someone against something that person intends to do or has done; remonstrate: His father expostulated with him about the evils of gambling. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: expostulate (Thesaurus) ex post facto expostulation Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language