Five definitions: diaphanous, hermetic, liminal, sardonic, fabulist

diaphanous: Of such fine texture as to be transparent or translucent: diaphanous tulle.

hermetic: Completely sealed, especially against the escape or entry of air.

sardonic: Scornfully or cynically mocking.

liminal: The threshold of a physiological or psychological response.

fabulist: A composer of fables.

(from The American Heritage Dictionary)