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...這是我所見過的最惹人喜愛的花園。She remembered Lucy as beautiful, charming and absolutely delightful.她記得的露西漂亮、迷人，而且非常討人喜歡。
英英詞典釋義
Adverb
1. in a delightful manner;
"the farm house, though in itself a small one, is delightfully situated"