/ Dictionary / Index S superfine: Meaning and Definition of Find definitions for: su•per•fine Pronunciation: (s"pur-fīn'), [key] — adj. extra fine, as in grain or texture; unusually fine: superfine sugar. extra fine in quality. excessively refined; overnice: superfine manners. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: superfine (Thesaurus) superficies superfix 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