snazziest

/S N AE1 Z IY0 AH0 S T/
adjective
  1. 1

    Elegant in manner of dress; stylish, modern or appealing in appearance; flashy.

  2. 2

    Excellent; clever, ingenious, or adept in behavior, operation, or execution.

Source: https://en.wiktionary.org/wiki/snazziest, https://en.wiktionary.org/wiki/snazzy