rusty bad 2 realizations
NEW Realization 1
Type Polysemy
Language Croatian
Lexeme rđav
Meaning 1 rusty
Direction
Meaning 2 bad rđav čovjek; rđavo društvo
bad person, bad company
Reference HJP
Comment rđav = rusty->spoiled, damaged -> bad, evil
NEW Realization 2
Type Polysemy
Language Serbian
Lexeme 1 рђав (rđav)
Lexeme 2 рђав (rdžav)
Meaning 1 rusty рђави нож
rusty knife
Direction
Meaning 2 bad рђави човек
bad, evil person
Reference Vujanitsh et al. 2007: 1145
Comment

рђав - bad in many ways: evil; unqualified, incapable of smth; indecent; of poor quality and so on

Interestingly, the meaning 'rusty' in РСКJ (5: 468) is cited as meaning n. 9, before that there are different variants of "bad".