Deceitfulness (9)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">deceitfulness</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Another definition for duplicity that I've seen is " Double-dealing".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">deceitfulness</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for perfidy that I've seen before include "Deceitfulness" , "Breach of faith" , "Betrayal" , "Duplicity" .)