Ethereal
Part of speech: adjective
Definition: Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; otherworldly; as, ethereal space; ethereal regions. Consisting of ether; hence, exceedingly light or airy; tenuous; spiritlike; characterized by extreme delicacy, as form, manner, thought, etc. Delicate, light and airy.
Delicate
Part of speech: adjective
Definition: Easily damaged or requiring careful handling.Characterized by a fine structure or thin lines.Intended for use with fragile items.Of weak health, easily sick.Unwell, especially because of having drunk too much alcohol.
Part of speech: noun
Definition: A delicate item of clothingSpecifically underwear or lingerie.
Example sentence: The voice of conscience is so delicate that it is easy to stifle it; but it is also so clear that it is impossible to mistake it.