skittish

Moving quickly and lightly; lively.

Restlessly active or nervous; restive.

Undependably variable; mercurial or fickle.

Shy; bashful.

Easily frightened; disposed to start, jump, or run, as if from fright.

Hence Shy; avoiding familiarity or intercourse; timid; retiring; coy.

Changeable; volatile; fickle: inconstant; capricious.

Deceitful; tricky; deceptive.

Easily frightened; timorous; shy; untrustworthy.

Wanton; restive; freakish; volatile; changeable; fickle.