living by preying on other animals especially by catching living prey; "a predatory bird"; "the rapacious wolf"; "raptorial birds"; "ravening wolves"; "a vulturine taste for offal"
not appropriate or proper (or even legal) in the circumstances; "undue influence"; "I didn't want to show undue excitement"; "accused of using undue force"
lacking justification or authorization; "unreasonable searches and seizures"; "desire for undue private profit"; "unwarranted limitations of personal freedom"