Impractical
Part of speech: adjective
Definition: Not practical; impracticable.
Example sentence: To power the country by building 186,000 fifty-story wind turbines - and running 19,000 miles of new transmission lines - just seems impractical and preposterous compared to the idea of building a hundred new nuclear facilities primarily on the sites we already have.
Airy
Part of speech: adjective
Definition: Consisting of air; as, an airy substance; the airy parts of bodies.Relating or belonging to air; high in air; aerial; as, an airy flight.Open to a free current of air; exposed to the air; breezy; as, an airy situation.Resembling air; thin; unsubstantial; not material; airlike.Relating to the spirit or soul; delicate; graceful; as, airy music.Without reality; having no solid foundation; empty; trifling; visionary.Light of heart; vivacious; sprightly; flippant; superficial.Having an affected manner; being in the habit of putting on airs; affectedly grand.Having the light and aerial tints true to nature.