/ Dictionary / Index S supererogatory: Meaning and Definition of Find definitions for: su•per•e•rog•a•to•ry Pronunciation: (s"pur-u-rog'u-tôr"ē, -tōr"ē), [key] — adj. going beyond the requirements of duty. greater than that required or needed; superfluous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: supererogatory (Thesaurus) supererogate superette Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language