From Longman Dictionary of Contemporary Englishupbeatup‧beat /ˈʌpbiːt/ adjective HAPPYEXPECTpositive and making you feel that good things will happen OPP downbeat an upbeat message
Examples from the Corpus
upbeat• For all the trouble she's been through, Anna is remarkably upbeat.• And there is something to be upbeat about in 1992: it's an election year.• Analysts are more upbeat about the long-term outlook for the economy.• The upbeat jazz I listen to in the kitchen makes my food come alive.• As he ends his trip, the usually upbeat Mr Liebenow is in a pensive mood.• an upbeat report• The exhibition keeps an official, upbeat tally of progress.• The senator took an upbeat view of the Republicans' chances in the next election. 