Something that is memorable is worth remembering or likely to be remembered, because it is special or very enjoyable.
例句
...the perfect setting for a nostalgic memorable day...度過令人難忘的懷舊一日的絕佳環境Annette's performance as Eliza Doolittle in 'Pygmalion' was truly memorable.安妮特在《賣花女》中扮演的伊麗莎·杜利特爾這個角色實在令人難忘。