Swell means stylish, excellent or wonderful.
Clean and in good order; trim; tidy
(Slang) Great; splendid; fine:
Very good; better than expected but not as good as could be.
(Slang) Very good, pleasing, etc.; excellent
Supremely great, good, etc.
(Slang) Excellent, good, funny, etc.
(Slang) Excellent, wonderful, delightful, etc.
Find another word for grooviest. In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for grooviest, like: swellest, niftiest, neatest, keenest, greatest, dandiest, coolest, divinest, hottest, dreamiest and best.