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Adjective: spiffy (spiffier,spiffiest)  spi-fee
Usage: N. Amer, informal
  1. Marked by up-to-dateness in dress and manners
    "a spiffy young man";
    - dapper, dashing, jaunty, natty [informal], raffish, rakish, snappy [informal], spruce, pert

Derived forms: spiffiest, spiffier

See also: fashionable, hip [informal], stylish