impatient of control, delay, restraint
refusing to go forward, balky (a restive horse)
After a long day in the house, Google became absolutely restive at night, pulling at his leash and leaping in and out of the shrubbery.
similar: nervous, unquiet, recalcitrant, disobedient, intractable, obstinate
dissimilar: docile, obedient, tractable patient, quiet