na-adjective
A loanword from English 'lovely', used in Japanese to describe something or someone as charming, cute, or delightful. Often carries a slightly fashionable or trendy feel.
彼女の新しいドレスはとてもラブリーだ。
Her new dress is very lovely.
このカフェはラブリーな雰囲気ですね。
This café has a lovely atmosphere, doesn't it?