happening

noun

he was a witness to these bizarre happenings:

occurrence, event, incident, scene, affair, circumstance, phenomenon, episode, adventure, experience, occasion, action, activity, development, eventuality, accident, case, business, thing.

adjective

informal

nightclubs for the young are the happening thing:

fashionable, modern, popular, new, latest, up to date, up to the minute, in fashion, in vogue;

French de rigueur, le dernier cri;

informal trendy, funky, hot, cool, with it, hip, in, big, now, groovy, sharp, swinging;

North American, informal kicky, tony, fly;

US, informal down.

▷antonyms old-fashioned.

happening Oxford Dictionary of English