excitable
agitable
allergic
anaphylactic
animated
antic
bashful
capersome
changeable
coltish
combustible
confused
conscious
coquettish
cowardly
coy
delicate
demure
diffident
dizzy
edgy
emotional
emotionally unstable
empathetic
empathic
empty-headed
eruptive
explosive
exuberant
faddish
fearful
fearing
fearsome
fickle
flighty
flirtatious
freakish
frisky
frivolous
frolicsome
full of beans
gamesome
gay
giddy
goosy
harebrained
hearty
high-mettled
anæmic
dumpy
four-year-old
fractious
half-broken
half-wild
hesitant
high-strung
light-headed
nervy
piebald
restive
riderless
roan
sheepish
sorrel
stilted
thoroughbred
twitchy
unshod
unsteady
unsure
untamed
British