/ Dictionary / Index D decastylos: Meaning and Definition of Find definitions for: dec•a•sty•los Pronunciation: (dek"u-stī'los), [key] — n. a decastyle building, as a classical temple. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. decastyle decasualize Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language