/ Dictionary / Index C capacious: Meaning and Definition of Find definitions for: ca•pa•cious Pronunciation: (ku-pā'shus), [key] — adj. capable of holding much; spacious or roomy: a capacious storage bin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: capacious (Thesaurus) capable capacitance Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language