unmanageable
Definitions
Difficult or impossible to control, direct, or manage.
Too large, complex, or awkward to be handled or dealt with easily.
Examples
The workload became completely unmanageable after the team lost three key members.
Her curly hair was so unmanageable that she decided to keep it in a short, simple style.
Synonyms
uncontrollable unruly intractable difficult wayward ungovernable obstinate
Antonyms
manageable controllable docile tractable compliant obedient easy