upbeat /ʌpˈbit/adjective 2noun 1forms 3 adjective2 •(of a person, a mood or music) cheerful, lively and full of energy and hopeThough he had bad news, he ended with an upbeat forecast for the future.He sounded upbeat when I talked to him. •Having a fast pace, tempo, or beat.The notes are easy, but it's an upbeat tune and should be played fairly quickly. noun1 •An unaccented beat at the start of a musical phrase.The conductor said: I give you three beats for nothing and then you come in on the upbeat. formsupbeats · more upbeat · most upbeat