firmly established

Definitions

Deeply rooted or securely set in place.

Having a stable, permanent, or widely accepted status.

Examples

The tradition of hosting a summer festival has become firmly established in our small town.

Her reputation as a leading expert in the field is now firmly established after years of dedicated research.

Synonyms

deeply rooted entrenched well-founded ingrained settled fixed unshakable

Antonyms

unstable tenuous precarious transient unsettled fledgling shaky