capaciousness

plural capaciousnesses

1. uncountableusuallyThe quality of being capacious.

   The author of the Plays was equipped, beyond every other man of his time, with wisdom, erudition, imagination, capaciousness of mind, grace, and majesty of expression.

   1909, Mark Twain [pseudonym; Samuel Langhorne Clemens], “Is Shakespeare Dead?”, in What Is Man? And Other Essays, New York, N.Y.; London: Harper & Brothers, published May 1917, page 358

   1 more example

   Capacity is the abstract of capax, receiving or apt to hold ; it is therefore applied to the contents of hollow bodies : capaciousness is the abstract of capacious and is therefore applied to the plane surface comprehended within a given space. hence we speak of the capacity of a vessel; and the capaciousness of a room.

   1818, George Crabb, English Synonyms Explained, in Alphabetical Order