| Traduções principais |
| unfaithful adj | (to spouse or partner) (relacionamento) | infiel adj |
| | It took some time, but Adrian forgave his wife for being unfaithful. |
| infidel n | (unbeliever, sb without faith) (sem fé) | infiel, pagão sm |
| | The church members go door to door trying to convert infidels. |
| two-timer n | (person unfaithful to partner) | infiel smf |
| unfaithful adj | (to original) | inexato, infiel adj |
| | This is an unfaithful reproduction of the original. |
| faithless adj | (traitorous, disloyal) (desleal) | infiel adj |
| | The faithless lieutenant was brought before a military court. |
| treacherous adj | figurative (memory, etc.: unreliable) (figurado) | traiçoeiro adj |
| | (figurado) | infiel adj |
| | Unable to separate fact from fiction, the woman cursed her treacherous memory. |
| | Incapaz de separar fato de ficção, a mulher amaldiçoou sua memória traiçoeira. |
| two-timing adj | (who is unfaithful) | infiel adj |
| unbeliever n | pejorative (infidel) | infiel, pagão sm |
| | This holy book says that unbelievers will be punished in the afterlife. |
| cheater n | US, informal (person who is sexually unfaithful) | infiel adj |
| | (formal) | adúltero adj |
| | When Laura discovered her husband was a cheater, she decided to leave him. |
| faithless adj | literary (spouse: unfaithful) | infiel adj |
| | Peter was devastated when he discovered his wife was faithless. |
| cheating adj | (deceitful, dishonest) | traidor, infiel adj |
| | | trapaceiro adj |
| | (BRA, gíria) | truqueiro adj |
| | The cheating player was banned from all subsequent games. |
| untrue to sb adj + prep | poetic (unfaithful to partner) | infiel adj |
| | | desleal adj |
| | | falso adj |
| | Warren claimed that he'd never been untrue to his wife. |
| cheating adj | (partner: unfaithful) | infiel adj |
| | | traidor adj |
| | Maria divorced her cheating husband. |
| | Maria se divorciou de seu marido infiel. |