infrangible

Difficult or impossible to break or separate into parts.

Inviolable.

Not capable of being broken or separated into parts.

Not to be violated or infringed; inviolable: as, an infrangible oath.

Not capable of being broken or separated into parts.

Not to be infringed or violated.

Unbreakable, indestructible, or very difficult to break.

difficult or impossible to break or separate into parts

not capable of being violated or infringed