1. 味道鲜美的;可口的
If you say that food, especially savoury food, is tasty, you mean that it has a fairly strong and pleasant flavour which makes it good to eat.

2. (尤指女子)迷人的，性感的
If someone describes a person, especially a woman, as tasty, they think they are sexually desirable.

1. pleasing to the sense of taste

e.g. a tasty morsel