unruly

1. ADJ If you describe people, especially children, as unruly, you mean that they behave badly and are difficult to control. (尤指兒童)難管教的

...unruly behaviour. …不守規(guī)矩的行為。

2. ADJ Unruly hair is difficult to keep tidy. (頭發(fā))難梳理的

The man had remarkably black, unruly hair. 那個男子有一頭不同尋常的亂蓬蓬的黑發(fā)。