What are the best answers for “spatial largeness and extensiveness (especially inside a building)”?

capaciousness, commodiousness, roominess, spaciousness.

How many letters does the top answer for “spatial largeness and extensiveness (especially inside a building)” have?

The most common answer is capaciousness (13 letters).

4 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

capaciousness 13 letters wn-def

spatial largeness and extensiveness (especially inside a building)

commodiousness 14 letters wn-def

spatial largeness and extensiveness (especially inside a building)

roominess 9 letters wn-def

spatial largeness and extensiveness (especially inside a building)

spaciousness 12 letters wn-def

spatial largeness and extensiveness (especially inside a building)