| FAI | marked by fidelity to an original |
|---|---|
| FAI | steadfast in affection or allegiance |
| FAI | not having sexual relations with anyone except your husband or wife, or your boyfriend or girlfriend |
| FAI | in a faithful manner |
| FAI | the quality of being faithful |
| FAI | deliberately and abominably disloyal or likely to betray trust or confidence |
| FAI | in a disloyal and faithless manner |
| FAI | unfaithfulness by virtue of being unreliable or treacherous |