matter of life death (noun) matter of life and death: urgent matter
Sinonime: antic, coltish,
frisky,
fun, gamesome,
gay, gleeful,
happy,
impish,
jocular,
jovial, kittenish, lively,
merry,
mischievous, roguish, rollicking, sportive,
sprightlyAntonime: serious,
staid,
stiff