nifty

UK: /ˈnɪfti/ US: /ˈnɪfti/ ,(nif′tē)

Inflections of 'nifty' (adj):

niftier

adj comparative

niftiest

adj superlative

Inflections of 'nifty' (n): npl: nifties

WordReference Random House Learner's Dictionary of American English © 2026

nif•ty /ˈnɪfti/   adj., -ti•er, -ti•est. [Informal.]

1. Informal Terms very good;
   fine;
   excellent:
   a nifty idea.
2. Informal Terms attractively stylish or smart:
   a nifty new suit.

WordReference Random House Unabridged Dictionary of American English © 2026

nif•ty  (nif′tē), adj., -ti•er, -ti•est, n., pl. -ties. [Informal.]
adj. 

1. Informal Terms attractively stylish or smart:
   a nifty new dress for Easter.
2. Informal Terms very good;
   fine;
   excellent:
   a nifty idea.
3. Informal Terms substantial;
   sizable:
   We sold the car for a nifty profit.

n. 

4. Informal Terms something nifty, as a clever remark or joke.

• of obscure origin, originally 1860–65, American.

nif′ti•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

nifty / ˈnɪftɪ/ adjective ( -tier, -tiest)

1. pleasing, apt, or stylish
2. quick, agile

Etymology: 19th Century: of uncertain origin

ˈniftily adverb

ˈniftiness noun