Words:
* ਬੇਵਫ਼ਾ (Bewafa) - This is the direct translation of "bewafa", but it's often used in a literary or formal context.
* ਨਿਰਵਫ਼ਾ (Nirvafa) - This word emphasizes the lack of faithfulness.
* ਬੇਈਮਾਨ (Beiman) - This word translates to "dishonest" and can be used to describe someone who is not trustworthy.
* ਗ਼ਦਾਰ (Gaddar) - This word translates to "traitor" and implies a betrayal of trust.
Phrases:
* ਵਫ਼ਾ ਨਾ ਕਰਨ ਵਾਲਾ (Wafa na karne wala) - This phrase means "one who doesn't show loyalty."
* ਬੇਰਹਿਮ (Berehim) - This word means "heartless" and can be used to describe someone who is uncaring.
* ਮਾੜਾ (Maara) - This word means "bad" and can be used to describe someone who is untrustworthy.
* ਦਗ਼ਾਬਾਜ਼ (Dagaabaz) - This word means "deceiver" and implies someone who is manipulative.
The best word or phrase to use will depend on the specific context and the nuance you want to convey.