An adherent of the metaphysical theory of psychophysical parallelism. See parallelism, 6.(noun)
Consonant to the doctrine of psychophysical parallelism.
The Century Dictionary (Public Domain)
Use "parallelist" in a sentence
"Anyway, just to say, I'm as self-aware as the next parallelist Gen-Xer and can appreciate a buffoonish liberal caricature when I see one."
"The parallelist preserves both realms intact, but denies all causal interaction between them."
"My favorite parallelist moment in culture is probably during the end "chase" sequence of "Ferris Bueller" when Matthew Broderick is running furiously through people's yards to beat his parents home, but still stops midway to introduce himself to some sunbathers."