Entry 1 sense Webster, 1913 Ethereality · E·the·re·al·i·ty · IPA /əˌθɪə̯.riˈæl.ə.ti/ 01 n. The state of being ethereal; etherealness. 1. The state of being ethereal; etherealness. “Something of that ethereality of thought and manner which belonged to Wordsworth's earlier lyrics.” — J. C. Shairp.