/ Dictionary / Index A arbitral: Meaning and Definition of Find definitions for: ar•bi•tral Pronunciation: (är'bi-trul), [key] — adj. pertaining to an arbiter or to arbitration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arbitral (Thesaurus) arbitrager arbitrament Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language