worryless
sans-souci
not have a care in the world
carefreely
angstless
untroubled
rollickingly
boisterously
let it all hang out
in the moment
happy-go-lucky
carefree
unstressedly
serene
with gay abandon
wanton
at peace
carelessly
bindaas
heedlessly
commodious
unencumbered
unworried
stressfree
laid-back
eat, drink and be merry
gather rosebuds
undespairingly
unhurried
unanxiously
keep one's knickers on
businesslike
let oneself go
go bonkers
fretless
lark
unworriedly
make light work of
dolce far niente
blithesome
low-keyed
unhectic
lighthearted
the world owes one a living
blithe
happy as Larry
lightsome
light-hearted
hasteless
thoughtless