Synonyms: entrenched
Definition: established firmly and securely
Usage: the entrenched power of the nobility
Similar words: constituted, established
Definition: brought about or set up or accepted; especially long established
Usage: the established social order; distrust the constituted authority; a team established as a member of a major league; enjoyed his prestige as an established writer; an established precedent; the established Church
Synonyms: entrenched
Definition: dug in
Similar words: invulnerable
Definition: immune to attack; impregnable
Usage: gunners raked the beach from invulnerable positions on the cliffs