in·com·pre·hen·si·ble 
(ĭn′kŏm-prĭ-hĕnsə-bəl, ĭn-kŏm′-)
(ĭn′kŏm-prĭ-hĕnsə-bəl, ĭn-kŏm′-)adj.
1.
a. Difficult or impossible to understand or comprehend; unintelligible: incomprehensible jargon.
b. Impossible to know or fathom: incomprehensible mysteries.
2. Archaic Having no limits; boundless.
in′com·pre·hen′si·bili·ty, in′com·pre·hensi·ble·ness n.
in′com·pre·hensi·bly adv.