ETYMOLOGY
from Latin inscius (not knowing, ignorant), (from in- + -scius (knowing)) + -ous
EXAMPLE
“… This they are willingly ignorant of. Hee begins with the Dunces, those stubborne and unruly Blockheads; inscious, nescious, conscious, wilfull Ignorants. It is one thing, velle scire quod oportuit latere; another, velle latere quod oportuit scire. The former, is a sawcie ambition of forbidden knowledge; the other, a headstrong preclusion of commanded knowledge. …”
From: A Commentary or, Exposition vpon the Diuine Second Epistle Generall, written by the Blessed Apostle St. Peter
By Thomas Adams, 1633
Lexicophilia 