Yummy/Yum 美味
Wow, the sandwich is yum.
这个三明治很美味。

Mouthwatering：something is so good that you are drooling thinking about it
That was absolutely scrumptious!
这简直太好吃了！

This handmade chocolate is delectable.
这个手工巧克力很可口。
My mom makes palatable meals for us everyday！
我妈妈每天给我做美味的一日三餐。
The food wasn't particularly appetizing.
这个食物看上去让人没什么胃口。