different between ungrounded vs notionist

English

ungrounded

ungrounded (comparative more ungrounded, superlative most ungrounded)

Not grounded; without ground or basis, unreal, false.
The defendant's claims are fictitious; they are entirely ungrounded in fact.
(electricity, electronics) Not connected to ground potential
Unlike coaxial cable where the outer conductor is grounded, twisted pair is usually ungrounded.

notion +? -ist

notionist (plural notionists)

One whose opinions are ungrounded notions.
- a. 1690, Ezekiel Hopkins, A Discourse concerning the Use of the Holy Scriptures
  Content not yourselves with some part of it, that you read the gospel, or new Testament, but neglect the old as is the practice of some flush notionist.

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