Standard Lemma guide

capaciousness

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

The quality of being capacious.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

spatial largeness and extensiveness (especially inside a building)

Definition source: Princeton WordNet 3.0

Examples

  • the capaciousness of Santa's bag astounded the child
  • roominess in this size car is always a compromise
  • his new office lacked the spaciousness that he had become accustomed to

Meaning relationships

Synonyms: roominess, spaciousness, commodiousness

Antonyms: none provided

Broader terms: largeness, bigness

Narrower terms: airiness, seating capacity

3

noun

Meaning 3

intellectual breadth

Definition source: Princeton WordNet 3.0

Examples

  • the very capaciousness of the idea meant that agreement on fundamentals was unnecessary
  • his unselfishness gave him great intellectual roominess

Meaning relationships

Synonyms: roominess

Antonyms: none provided

Broader terms: breadth, comprehensiveness, largeness

History

Etymology

Etymology tree English capacious Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English capaciousness From capacious + -ness.