/ Dictionary / Index A attemper: Meaning and Definition of Find definitions for: at•tem•per Pronunciation: (u-tem'pur), [key] — v.t. Archaic. to modify or moderate by mixing or blending with something different or opposite. to regulate or modify the temperature of. to soothe; mollify; mitigate. to accommodate; adapt (usually fol. by to). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: attemper (Thesaurus) attar attempt Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language