ethereal (suomeksi)

yläilmainen (a)
eteerinen (a: Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterized by extreme delicacy)
hentoinen (a)
hengenomainen (a)
taivaallinen (a: Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere)
haihtuva (a: Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterized by extreme delicacy)