Entry 1 sense Webster, 1913 Pomposity /pämˌ-päs'-ĭt-ē/ · Pom·pos·i·ty · IPA /pˌɑmpˈɑsɪtiː/ 01 n. The quality or state of being pompous; pompousness. pl. Pomposities 1. The quality or state of being pompous; pompousness.