Words with FAI

• the quality of being disloyal, treacherous, or insincere

Synonyms: unfaithfulness, infidelity, inconstancy, faithlessness, fickleness, unreliability, untrustworthiness, breach of trust, breach of faith, betrayal, falseness, false-heartedness, falsity

• the action or fact of being sexually unfaithful to a spouse or partner; infidelity

Synonyms: unfaithfulness, adultery, unchastity, cuckoldry, extramarital relations, extramarital sex

• the quality of not being true to the facts or the original

Synonyms: incorrectness, inexactness, inexactitude, imprecision, erroneousness, mistakenness, fallaciousness, faultiness