The Collaborative International Dictionary
Imperscrutable
Imperscrutable \Im`per*scru"ta*ble\, a. [L. imperscrutabilis.] Not capable of being searched out; inscrutable. [Obs.] -- Im`per*scru"ta*ble*ness, n. [Obs.]
Wiktionary
imperscrutable
a. (context obsolete English) Not capable of being searched out; inscrutable.