Webster’s Revised Unabridged Dictionary · 1913
Problematic
Prob′lem·at′ic, Prob′lem·at′ic·al, a. [L. problematicus, Gr. προβληματικός: cf. F. problématique.] Having the nature of a problem; not shown in fact; questionable; uncertain; unsettled; doubtful. — Prob′lem·at′ic·al·ly, adv.
Diligent inquiries into remote and problematical guilt leave a gate wide open to . . . informers. Swift.