INFRANGIBLE
Source: 567
In‐fran″gi‐ble (?), a. [[Pref. in- not + grangible: cf. F. infrangible.]] 1. 1. Not capable of being broken or separated into parts; as, infrangible atoms.
link'd their fetlocks with a golden band Infrangible. Pope. 2. 2. Not to be infringed or violated.