Available Definitions:
1) a. - Unwilling to go on; obstinate in refusing to move forward; stubborn; drawing back.
2) a. - Inactive; sluggish.
3) a. - Impatient under coercion, chastisement, or opposition; refractory.
4) a. - Uneasy; restless; averse to standing still; fidgeting about; -- applied especially to horses.