/ Dictionary / Index O old style: Meaning and Definition of Find definitions for: old' style" Pronunciation: [key] a type style differentiated from modern by the more or less uniform thickness of all strokes and by slanted serifs. (caps.) time reckoned according to the Julian calendar. Cf. noting or descriptive of a font of numerals of which some part extends below the baseline. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Old Stone Age Old Test. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language