silly Synonyms - page 2
simple
simplistic
superstitious
superficial
sucker
stupid
spooney
sophomoric
soft
skin-deep
puerile
dippy
ill-conceived
scatterbrained
meaningless
slaphappy
mutt
campy
harebrained
clownlike
schtick
moronic
nitwitted
crackpot
daffy
imbecilic
crackbrained
bananas
punch drunk
short-sighted
unintelligent
rattlebrained
half-baked
one-dimensional
schmo
softheaded
feebleminded
lightheaded
spacey
starry-eyed
unreflective
whacky
loopy
kooky
dopey
dopy
gooselike
footling
SNAFU
thickheaded