Synonyms for Jaunty (same or very similar meaning)
WordNet sense 1 (marked by up-to-dateness in dress and manners):
dapper, dashing, natty, raffish, rakish, snappy, spiffy, spruceWordNet sense 2 (being or in accordance with current social fashions):
fashionable, stylishWordNet sense 3 (having a cheerful, lively, and self-confident air):
chipper, debonair, debonaireFrom the ODE community, based on WordNetadd/edit