1.
If you describe something as ~, you mean that it is difficult to use, deal with, or control.
People were visiting the house every day, sometimes in ~ numbers.
...her freckles and ~ hair.
ADJ
2.
If you describe someone, especially a young person, as ~, you mean that they behave in an unacceptable way and are difficult to control.
The signs are that indulged children tend to become ~ when they reach their teens.
= uncontrollable
ADJ