If you describe something or someone as delightful, you mean they are very pleasant.
例句
It was the most delightful garden I had ever seen...这是我所见过的最惹人喜爱的花园。She remembered Lucy as beautiful, charming and absolutely delightful.她记得的露西漂亮、迷人，而且非常讨人喜欢。
英英词典释义
Adverb
1. in a delightful manner;
"the farm house, though in itself a small one, is delightfully situated"