Correct Answer:
B. Treacherous
The synonym of "perfidious" is Treacherous. The word "perfidious" describes someone who is deceitful and untrustworthy, characterized by a betrayal of trust. It implies a deliberate breach of faith or loyalty.
- Treacherous perfectly aligns with this meaning, describing someone who is guilty of or involved in betrayal or deception, especially in matters of trust.
- Loyal is an antonym of perfidious, meaning faithful and committed to someone or something.
- Honest is also an antonym, meaning truthful, sincere, and free of deceit.
- Forgiving refers to the act of pardoning someone for a mistake or offense, which is unrelated to the core meaning of perfidious.
Therefore, "treacherous" is the most accurate choice as it captures the essence of betrayal and disloyalty inherent in "perfidious."