imminent

Synonyms: about to happen approaching brewing close coming expectant fast-approaching following forthcoming gathering handwriting-on-the-wall immediate impending ineluctable inescapable inevasible inevitable in store in the air in the cards in the offing in the wind in view likely looming menacing near nearing next nigh on its way on the horizon on the verge overhanging possible probable see it coming threatening to come unavoidable unescapable

Antonyms: distant doubtful far future later