1‘Stephen looked very natty in a lightweight grey suit and shiny black shoes’
smart, stylish, fashionable, dapper, debonair, dashing, jaunty, rakish, spruce, well turned out, well dressed, chic, modish, elegant, trim
informal snazzy, trendy, cool, sharp, snappy, with it, nifty, groovy
North American informal kicking, kicky, tony, fly, spiffy, sassy, stylin'
US informal on fleek
dated as if one had just stepped out of a bandbox
Are You Learning English? Here Are Our Top English Tips