Worth remembering or easily remembered, especially because of being special or unusual.

यादगार

English Usage: The wedding was a memorable occasion for everyone involved.

Hindi Usage: शादी सभी के लिए एक यादगार अवसर था।

An event or experience that is significant and worth remembering.

यादगार घटना

English Usage: That summer trip to the beach became a memorable for our family.

Hindi Usage: वह गर्मियों की यात्रा हमारे परिवार के लिए एक यादगार घटना बन गई।