harum-scarum Synonyms
slaphappy
lunatic
madcap
pell-mell
hothead
freewheeling
swashbuckler
carefree
daredevil
devil-may-care
happy-go-lucky
goofball
lightweight
shatter-brain
dork
ding-dong
gone off half-cocked
muppet
lamer
goofus
gink
dumbhead
divvy
dingleberry
dingbat
clunk
chowderhead
charlie
goof
berk
boob
git
galoot
foolhardy
dip
coot
cluck
clot
careless
ass
hasty
headlong
heedless
klutz
rash
bozo
wild
reckless
mug
lummox