that cannot be or is not liable to be, broken; not fragile; unbreakable; impenetrable; not allowing to pass through; impermeable.

that which cannot be broken, pierced through.

a man or group of persons, who will not succumb to enemy's means of defeating them by sowing dissentions among them.

a fact or information that cannot be known by sowing dissentions.

(masc.) one who has good name, fame; a renowned man.

that which has name.

literal power or sense of a word.

the act or process of thinking seriously or deeply; cogitation; deep meditation.