IMPASSIBIL'ITY IMPAS'SIBLE, adjective [Latin impassibilis, from passus, patior, to suffer.] Incapable of pain, passion or suffering; that cannot be affected with pain or uneasiness. Whatever is destitute of sensation is impassible. Though naked and impassible, depart.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI