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 slap-up. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for slap-up, like: bang-up, bully, corking, cracking, dandy, great, groovy, keen, neat, nifty and not-bad.