unruly

Compared meaning: hard to control or manage (adjective).

比较义项：难以控制、难对付的（形容词）。

• difficult

  Difficult is a general, milder word for someone hard to manage or deal with; it doesn't necessarily imply bad behavior, and is common in neutral or formal contexts (a difficult child, a difficult client).

  difficult是较为温和、笼统的说法，指某人难以相处或难以管教，不一定意味着行为恶劣，常用于中性或正式语境中（如难缠的孩子、难缠的客户）。

  Her elderly father has become quite difficult since he moved in with them.

  自从搬来和他们同住后，她年迈的父亲变得相当难缠。

• unruly 本词

  Unruly is stronger and more vivid, describing people (often groups, children, crowds) who are disorderly, noisy, and refuse to follow rules; it always implies bad behavior, not just being hard to deal with.

  unruly语气更强、更生动，用来形容人（常指群体、孩子、人群）无秩序、吵闹、不服管教，总是暗示行为恶劣，而不仅仅是难以相处。

  The unruly crowd pushed past security and rushed onto the field.

  不守规矩的人群冲破安保，涌上了球场。

Both can mean hard to control, but difficult is milder, just meaning hard to manage, as in a difficult child. Unruly is stronger, describing disorderly people, often groups or children, who won't follow rules. Difficult's other sense, not easy to do, is not compared here.

difficult和unruly在“难以控制”这一意义上接近，但difficult语气较温和，只表示难对付、难管教，未必涉及行为不端；unruly语气更强，专指行为无序、不服管教的人或群体。这里不比较difficult“不容易做到”的意思（如难度大的测试）。