Ungrounded
verb
To remove a connection to ground potential.
“If you unground the extension cord it will cause a shock hazard in that drill.”
To free from the punishment of being grounded (restricted to home).
“We'll consider ungrounding you when you can act your age.”
adjective
Not grounded; without ground or basis, unreal, false.
“The defendant's claims are fictitious; they are entirely ungrounded in fact.”
Not connected to ground potential