forever UK /fəˈɹɛvə(ɹ)/US /fəˈɹɛvɚ/adverb 3noun 2adjective 1forms 1phrases 1 adverb3 •through all time, with no endI shall love you forever. •(informal) For a very long time, a seeming eternity.We had to wait forever to get inside.That was forever ago. •Constantly or frequently.You are forever nagging me. noun2 •(informal) An extremely long time.I haven't seen him in forever!It took me forever to make up my mind. •(informal) A mythical time in the future that will never come.Sure, I'd be happy to meet with you on the 12th of forever. adjective1 •(informal) Permanent, lasting; constant, perpetual.It'd be a peaceful life / With a forever wife / And a kid someday — 1971 formsforevers Phrases with forever forever and a dayFor a very long or seemingly endless time.