Infrangible

1. (a.) Not capable of being broken or separated into parts; as, infrangible atoms.

2. (a.) Not to be infringed or violated.

Thesaurus Entries

chip-proof, coherent, cohesive, firm, firm as Gibraltar, fractureproof, impartible, indiscerptible, indissoluble, indissolvable, indivisible, infusible, inseparable, insoluble, made of iron, nonbreakable, rigid, shatterproof, solid, sound, stable, staunch, stout, sturdy, unbreakable, undividable, unified, unshatterable