unscrupulous /ˌʌnˈskruːpjələs/ adjective /ˌʌnˈskruːpjələs/
adjective
Learner's definition of UNSCRUPULOUS
[more unscrupulous; most unscrupulous]
: not honest or fair : doing things that are wrong, dishonest, or illegal不诚实的；不公正的；不合法的
— unscrupulousness
noun [noncount]