| Answer | Crossword Clue |
|---|---|
| TRAITOR | Perfidious person |
| TRAITOR | Perfidious person. |
| EVIL | Perfidious |
| ALBION | "Perfidious ..." |
| SNAKY | Perfidious. |
| FALSE | Perfidious. |
| FALSE | Perfidious |
| DISHONEST | Perfidious |
| RATS | Perfidious ones |
| TRAITOR | Perfidious one. |
| TREACHERY | Perfidious business. |
| PLAYFALSE | Be perfidious |
| DOUBLEDEALER | Perfidious one |
| TRUER | Less perfidious |
| TRUEST | Least perfidious |
| IAGO | Othello's perfidious aide |
| IAGO | Prototype of the perfidious friend. |
| HEEP | Perfidious clerk in "David Copperfield" |
