Opposite Word of unestablished:
"established, deep-rooted, deep-seated, implanted, ingrained, planted, entrenched, grooved, well-grooved, legitimate, official, recognized, recognised, self-constituted, self-established"
"established, deep-rooted, deep-seated, implanted, ingrained, planted, entrenched, grooved, well-grooved, legitimate, official, recognized, recognised, self-constituted, self-established"