happening

funky

dapper, dashing, dressy, natty, rakish, sassy, saucy, spiffy, spruce

chichi, classy, nobby, posh, ritzy, swank (or swanky)

elegant, graceful, handsome, majestic, refined, sophisticated, stately, tasteful, understated

flashy, gallant

dandyish, dudish, foppish

abounding, crowded, overflowing, populous, swarming, teeming, thronging

semipopular

preferred, selected

desirable, liked, wanted

celebrated, famed, famous, noted, notorious, prominent, renowned, well-known

fabled, fabulous, legendary

leading, notable, outstanding, prominent, remarkable

escapade, lark, ploy

act, action, deed, doing, feat

episode, occasion

baptism, ordeal, test, trial, tribulation

enterprise, risk, venture

expedition, exploration, mission, performance, quest, stunt

coincidence, fluke, freak

landmark, milepost, milestone, page, phenomenon, turning point

adventure, experience, time

happenchance, happenstance

accident, crisis, emergency, juncture

achievement, deed, exploit, feat

news, tidings