Synonyms for Happening:
n.curiosity, paradox, aberration, spectacle, number, novelty, exception. booking, draw, double bill, command performance, act, thing, happen, appearance, double feature, curtain raiser, display, debut. state of the art, advanced, up-to-the-minute, modernistic, contemporary, ahead of your/its etc. time, futuristic, modern, development, space age. •act (noun)
cardinal point, juncture, landmark, milestone, basis, occasion, instant, occurrence, condition, moment, status, event, episode, incidence, conjuncture, circumstance, situation.
natural event, occurrence.
occurrence, on, natural event.
reality, affair, occasion, milestone, circumstance, thing, event, incident, episode, news.
coming to pass, taking place, passing.
ensuing, Befalling, following, Occurring, transpiring, Arising, developing, Eventuating.