frivolous
airheaded
dizzy
featherbrained
giddy
light-headed
silly
'bobblefoot'
big-boned
bitchy
brainless
bumptious
dern
double-dyed
ever-juvenile
flighty
gold-skinned
heavyhearted
leftie
light-winged
love-sick
mindless
peccant
pimply
pleasure-loving
pushdown
self-indulgent
smart-mouthed
unaspiring
untalented
weak-minded
young-lady