If you describe a country or region as ungovernable, you mean that it seems impossible to control or govern it effectively, for example because of violence or conflict among the population. The country has become virtually ungovernable
Not governable; not capable of being governed, ruled, or restrained; licentious; wild; unbridled; as, ungovernable passions
of persons; "the little boy's parents think he is spirited, but his teacher finds him unruly"
If you describe feelings as ungovernable, you mean that they are so strong that they cannot be controlled. He was filled with an ungovernable rage. = uncontrollable