Ungroundable

2008, South Park (TV series), The Ungroundable You can't ground me, for I'm neither living nor dead. How can thy ground that which is ungroundable?

“We're nineteen. Soon we'll be out of the teens.” “And ungroundable,” Eve agreed darkly.

[…] judgments that are ungroundable because infinitely reflective […]

Insisting on existential decision as the last word in such an ungroundable sphere is one way of understanding ethical responsibility.

Our rational functioning draws energy and guidance from a basic, rationally ungroundable stance or orientation […]

Needless to say, clothing is ungroundable, so short sleeves are recommended.