Referring to something that has existed for a long time, particularly an institution, practice, or tradition.

लंबे समय से स्थापित

English Usage: "The long-established institution has played a critical role in the community."

Hindi Usage: "लंबे समय से स्थापित संस्था ने समुदाय में एक महत्वपूर्ण भूमिका निभाई है।"