Lovely; nice; charming—used to say something or someone is attractive, pleasant, or delightful.
彼女のドレス、すてきですね。どこで買ったのですか？
Her dress is lovely. Where did she buy it?
あのカフェは雰囲気がすてきで、よく友達と行きます。
That cafe has a lovely atmosphere, and I often go there with friends.
プレゼント、すてきに包んでくれてありがとう。
Thank you for wrapping the present so nicely.