I. (ˈ)im, əm+ adjective
Etymology: Medieval Latin imponderabilis, from Latin in- in- (I) + Late Latin ponderabilis ponderable — more at ponderable
: not ponderable : incapable of being weighed, measured, or evaluated with exactness
supposed that there was an imponderable electrical fluid which pervaded all space — S.F.Mason
such imponderable human factors as one's aesthetic sensitivity — Hunter Mead
• im·ponderableness “+ noun -es
• im·ponderably “+ adverb
II. noun
: an imponderable thing, element, or agency
spiritual imponderables
that huge imponderable which enters the courtroom: public opinion — Catherine Bowen
the overriding importance of imponderables in determining human conduct — John Russell b. 1872