WordRel.com

• open to or abounding in fresh air

  synonym	aired
  derivation	airairiness
  similar	ventilated

• not practical or realizable; speculative

  synonym	impracticalLaputanvisionarywindy
  similar	utopian

• having little or no perceptible weight; so light as to resemble air

  derivation	airiness
  similar	light

• characterized by lightness and insubstantiality; as impalpable or intangible as air

  synonym	aerialaeriformaeryethereal
  derivation	airiness
  similar	insubstantialunrealunsubstantial