nifty//ˈnɪfti//B2Frequency Level 12ColloquialAdjectiveniftyCanonical formniftierComparativeniftiestSuperlative1Particularly good, skillful, or effective; clever and practical.That's a nifty little gadget for opening jars.2Fashionable or stylish.She wore a nifty little hat to the party.SynonymcleverhandyneatAntonymclumsy