Dashing, hearty, or jolly
Almost first rate.
Superior in quality or character; noble:
The definition of keen is something sharp or intense.
Neat is defined as someone or something that is tidy, well-formed or well-done.
(Informal) Extraordinarily impressive or fine; wonderful:
Find another word for not-bad. In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for not-bad, like: corking, bang-up, bully, cracking, dandy, great, groovy, keen, neat, nifty and peachy.