We on the earth's surface live night and day in the midst of aethereal commotion.
No stronger proof of their aethereal conversational earnestness could be offered.
1510s, "of the highest regions of the atmosphere," from ether + -al (1); extended sense of "light, airy" is from 1590s. Meaning "spiritlike, immaterial" is from 1640s. Related: Ethereally.
ethereal e·the·re·al (ĭ-thēr'ē-əl)adj.
Characterized by lightness and insubstantiality; intangible.
Of, relating to, or containing ether.