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adjective
in a firm position
Synonyms: secure, fixed, stable, set, entrenched, settled, well-established, rooted, vested, deep-rooted, ingrained, unshakable, permanent, traditional
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adjective
set up to endure
Synonyms: endowed, founded, organized, instituted, set up, realized, originated, chartered, incorporated, settled, inaugurated, codified, systematized, ratified, equipped, conceived, produced, begun, initiated, completed, finished
Antonyms: temporary, unsound, insolvent
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adjective
conclusively proved
Synonyms: verified, approved, guaranteed, endorsed, demonstrated, determined, confirmed, substantiated, accepted, assured, concluded, closed, authenticated, corroborated, found out, achieved, upheld, certain, ascertained, valid, validated, identified, proved, undeniable, sure, objectified
Antonyms: false, invalidated, untrue