If you say that an action is unworthy of someone, you mean that it is not a nice thing to do and someone with their reputation or position should not do it. His accusations are unworthy of a prime minister
lacking in value or merit; "dispel a student whose conduct is deemed unworthy"; "unworthy of forgiveness
Not worthy; wanting merit, value, or fitness; undeserving; worthless; unbecoming; often with of
morally reprehensible; "would do something as despicable as murder"; "ugly crimes"; "the vile development of slavery appalled them"