(Slang) Great; splendid; fine:
The definition of groovy is slang to describe something that is very good, fun, or nice looking.
Very good; better than expected but not as good as could be.
(Slang) Excellent, good, funny, etc.
(Slang) Excellent, wonderful, delightful, etc.
Clean and in good order; trim; tidy
Amusingly clever; witty:
(Informal) Attractive or stylish:
(Slang) Very good, pleasing, etc.; excellent
Supremely great, good, etc.
Find another word for niftier. In this page you can discover 13 synonyms, antonyms, idiomatic expressions, and related words for niftier, like: keener, groovier, dandier, hotter, dreamier, neater, greater, smarter, sharper, cooler and diviner.