/ Dictionary / Index D deontological ethics: Meaning and Definition of Find definitions for: deon'tolog'ical eth'ics Pronunciation: [key] the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act. Cf. axiological ethics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Deo gratias* deontology Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language