noun[mass noun] • literary
- The state of being deceitful and untrustworthy: it was an example of his perfidy Hapsburg perfidyMore example sentences
- I have been accused of perfidy, malingering, duplicity, charlatanism and forty other words that I don't know the meaning of.
- Think of the valiant whistleblower inside a corporation or an agency who puts himself at risk to uncover criminal perfidy.
- With possible political perfidy such a hot topic at Westminster, it is with perfect timing that the Lyceum and Citizens' theatres bring two of England's great plays of history and politics to the stage.
late 16th century: via French from Latin perfidia, from perfidus 'treacherous', based on per- 'to ill effect' + fides 'faith'.