malcontent
noun /ˈmælkəntent/
/ˌmælkənˈtent/
[usually plural] (formal, disapproving)- a person who is not satisfied with a situation and who complains about it, or causes trouble in order to change it
不满者；牢骚满腹的人；反叛者 - The strike was engineered by a handful of malcontents.
这次罢工是由一小撮不满分子策划的。
词源late 16th cent.: from French, from mal ‘badly, ill’ + content ‘pleased’. - The strike was engineered by a handful of malcontents.