Person who leaks, who flees or is a deserter. Treacherous person and which must always be wary. Pharisee, criminal.
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Defector: ( adj. ) 1 facineroso or robber passing fleeing from one place to another. 2 politician who betrays or abandons his political party to form part of another. 3 deserter, traitor.
Person without any kind of principles, thief or deserter