Yum

Part of speech: interjection

Definitions

1. A spontaneous expression of pleasure or delight, particularly regarding food or drink
2. A term used to convey that something is appetizing and enjoyable
3. An informal exclamation that indicates something tastes or smells delicious

Etymology: What is well established is its sound and use: it is an interjection expressing pleasure at food, and it is usually written with the "mm" and "yum" sounds that people make while eating something delicious. The word is imitative in character, built from the sounds a person makes with the mouth full, much like other interjections of satisfaction. Its spelling has been popular in informal writing and advertising, where it signals enjoyment quickly and cheerfully.

Synonyms: delicious, tasty, yummy, appetizing, savory

Antonyms: disgusting, unappetizing, bland, inedible, tasteless