Synonyms of the word

entrenched

• v. simple past tense and past participle of entrench.

constituted

• v. simple past tense and past participle of constitute.

established

• v. simple past tense and past participle of establish.
• adj. Having been in existence for a long time and therefore recognized and generally accepted.
• adj. Of a religion, church etc.: formally recognized by a state as being official within that area.
• adj. (Model, procedure, disease) Explicitly defined, described or recognized as a reference.

invulnerable

• adj. Incapable of being injured; not vulnerable.
• adj. Unanswerable; irrefutable.