adjective بی وَفا / bi vafâ

IPA: /bi: væfɒː/

سعدی فغان از دست ما لایق نبود ای بی وفا

sa'di fağân az daste mâ lâyeq nabud ey bi vafâ

Saadi! Ye of no loyalty! Complaining about us was not justified.

Wiktionary

disloyal, fair-weather, faithless, false, falsehearted, fickle, mercurial, recreant, skittish, trifling, unfaithful, untrue, variable, wayward