nervous

adj

1.
easily agitated
Derived from:
nervousness
2.
causing or fraught with or showing anxiety
anxious queasy uneasy unquiet
Derived from:
nervousness
3.
of or relating to the nervous system
neural
Pertainym:
nervous system
Derived from:
nerve
4.
excited in anticipation
aflutter
Derived from:
nervousness
5.
unpredictably excitable (especially of horses)
flighty skittish spooky
Derived from:
nervousness