insubstantial

characterized by lightness and insubstantiality

n the lofty nest of a bird of prey (such as a hawk or eagle) n any habitation at a high altitude s characterized by lightness and insubstantiality

the property of something weightless and insubstantial n

n the state of being insubstantial or imaginary

not burdensome a of little intensity or power or force a (physics, chemistry) not having atomic weight greater than average s weak and likely to lose consciousness s very thin and insubstantial s marked by temperance in indulgence s less than the correct or legal or full amount often deliberately so s having little importance s intended primarily as entertainment