- The definition of nifty is slang to describe something that is good or great.
An example of something nifty is how a 50's sitcom character describes a girl he likes.
Origin: orig. theatrical slang, probably from magnificent
Used by arrangement with John Wiley & Sons, Inc.
Slangadjective nif·ti·er, nif·ti·est
Origin: Origin unknown.
- nifˈti·ly adverb
- nifˈti·ness noun