uncontrollable
un-con-trol-la-ble
adjective
Impossible to manage, restrain, or keep within limits or under command.
"The dog had an uncontrollable urge to chase squirrels."
Thesaurus
Synonyms: uncorrectable, incorrigible, unmanageable, irrepressible, uncontrolled, indocile, unruly, ungovernable, difficult, intractable