Grumpish

Part of speech: adjective

Definitions

1. Somewhat irritable or bad-tempered in mood or manner
2. Showing a tendency to be mildly annoyed or cranky
3. Displaying a slightly sour or displeased attitude

Etymology: "Grumpish" is simply "grumpy" with the suffix "-ish" attached, the same ending that turns "red" into "reddish" or "childish" from "child". "Grumpy" itself is the older base, and the "-ish" makes it mean "somewhat" or "rather" grumpy, so a person who is a little irritable and short with others can be called grumpish without quite being grumpy.

Synonyms: irritable, sullen, cranky, moody, testy

Antonyms: cheerful, happy, joyful, pleasant, easygoing