airy-fairy

adjective

1. Informal.
   1. delicate or lovely: an airy-fairy actress; an airy-fairy nightgown.
   2. not based on reality or concerned with mundane affairs; unrealistic: airy-fairy ideas about spending a fortune that isn’t even his.
2. Slang. effeminate; swishy.

adjective

1. informal fanciful and unrealistican airy-fairy scheme
2. delicate to the point of being insubstantial; light