From Longman Dictionary of Contemporary Englishcapaciousca‧pa‧cious /kəˈpeɪʃəs/ adjective formalBIGable to contain a lota capacious suitcase —capaciousness noun [uncountable]Examples from the Corpuscapacious• The rugged and capacious airframe offers plenty of scope for civilianoperators.• The van was capacious and he decided to fill up the space with a couple of sacks of fuel.• With what amazement and pleasure we talked and laughed and wept as we flooded that capaciousboulevard.• From this pseudo-grandeur, a curvingstairwayascends to eight capaciousgalleries.• It demands long leg bones, powerfulmuscles, capaciouslungs.• The front door of the capacious old mansion stood open.• I give him the keyring which he glances at briefly before putting it in the capaciouspocket of his roughshirt.• a capacious theaterOrigincapacious(1600-1700)Latincapax, from capere; → CAPABLE