/ Dictionary / Index M misbegotten: Meaning and Definition of Find definitions for: mis•be•got•ten Pronunciation: (mis"bi-got'n), [key] — adj. unlawfully or irregularly begotten; illegitimate: his misbegotten son. badly conceived, made, or carried out: his misbegotten plan. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: misbegotten (Thesaurus) misbecome misbehave Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language