noun
spatial largeness and extensiveness (especially inside a building) (Freq. 2)
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the capaciousness of Santa's bag astounded the child
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roominess in this size car is always a compromise
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his new office lacked the spaciousness that he had become accustomed to
• Syn: ↑capaciousness, ↑roominess, ↑commodiousness
• Derivationally related forms: ↑commodious (for: ↑commodiousness), ↑spacious, ↑roomy (for: ↑roominess), ↑capacious (for: ↑capaciousness)
• Hyponyms: ↑airiness, ↑seating capacity
Useful english dictionary. 2012.