Established
Established adjective - Brought about or set up or accepted; especially long established.
Firm is a synonym for established in characteristic topic. In some cases you can use "Firm" instead an adjective "Established", when it comes to topics like state.
Nearby Words: establishment, establishing
Firm
Firm adjective - Not showing weakness or uncertainty.
Established is a synonym for firm in characteristic topic. Sometimes you can use "Established" instead an adjective "Firm", if it concerns topics such as secure, unalterable, definite.
Mutual synonyms
Both words in one sentence
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Adaptational Villainy: While he has long been in a Face Heel Revolving Door in the normal timeline, the Gladiator of this universe is established as a pretty firm Jerkass.
Source: Comic Book / X-Men '92 -
You're faced with a mounting problem or situation, and are in need of legal assistance... luckily, there's a well reputable, and established law firm nearby!
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Harmony suggests Wesley but is shot down because there's an established belief at the firm that Wesley is gay.
Source: Mistaken for Gay
Cite this Source
Firm and Established. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/established/firm
Established & Firm. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/established/firm>.
Firm or Established. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/established/firm.
Google Ngram Viewer shows how "established" and "firm" have occurred on timeline