'airiness' definitions:

Definition of 'airiness'

From: WordNet
noun
The property of something spacious and abounding in fresh air
noun
The property of something weightless and insubstantial [syn: airiness, buoyancy]
noun
Lightness in movement or manner [syn: airiness, delicacy]

Synonyms of 'airiness'

From: Moby Thesaurus