2 Usage Examples Depicting the Meaning of 'Perfidious' in a Sentence
"Intentionally untrustworthy, disloyal, or deceitful; a perfidious person cannot be relied upon due to their treacherous and faithless nature." more
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The perfidious software engineer inserted malicious code, compromising the security of the system.
The perfidious software update introduced critical vulnerabilities, putting users at risk.
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