单词	perfidious
释义	perfidiousper‧fid‧i‧ous /pəˈfɪdiəs $ pər-/ adjective literary Word Origin WORD ORIGINperfidious Origin: 1500-1600 Latin perfidiosus, from perfidia ‘disloyalty’, from perfidus ‘disloyal’, from per fidem decipere ‘to deceive by trust’ Examples EXAMPLES FROM OTHER DICTIONARIES a perfidious scheme EXAMPLES FROM THE CORPUS The air was thick with paranoia as the conversation turned to the perfidious question of appearance money. someone who is perfidious is not loyal and cannot be trusted SYN  treacherous
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