Metaphysical (14)
I believe the answer is:
transcendental
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">metaphysical</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for transcendental that I've seen before include "Pi is" , "Supereminent" , "'being in the spiritual realms' maybe" , "like a number of mathematicians?" , "Relating to the spiritual realm" .)