matter of chance (noun) shot in the dark: wild guess or try
Sinonime: blithe, bouncy,
carnival, carnivalesque, cheery, chipper, chirpy, convivial, festal,
gala, gay, gleeful, go-go, grooving, happy,
hearty,
holiday,
jocund,
jolly, jovial, joyful,
joyous,
jubilant, juiced up, jumping,
lighthearted, merry,
mirthful,
peppy*,
perky, rocking, snappy, swinging,
upbeat, zippy
Antonime: depressed,
gloomy,
somber, undecorated