/ Dictionary / Index O obtund: Meaning and Definition of Find definitions for: ob•tund Pronunciation: (ob-tund'), [key] — v.t. to blunt; dull; deaden. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: obtund (Thesaurus) obtrusive obturate Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language