Definition of ethereal (adjective)
- characterized by lightness and insubstantiality; as impalpable or intangible as air
- of or containing or dissolved in ether
- "ethereal solution"
- of heaven or the spirit
- characterized by unusual lightness and delicacy
- "this smallest and most ethereal of birds"; "gossamer shading through his playing"
- synonyms: gossamer
Source: Princeton University Wordnet