largeness n. + Add to list US //ˈɫɑɹdʒnɪs// UK //lˈɑːdʒnəs// large·ness Archaic SynonymsAntonymsEtymology Synonyms bignessbreadthcomprehensivenessextensivenesspretensionpretentiousness Antonyms littlenesssmallnessunpretentiousnessOrigin From large + -ness.