🔪 Betrayal 🙏 No belief 💔 Infidelity

unfaith

9.7

Lack of loyalty that breaks trust between people

noun
/ʌnˈfeɪθ/

Archaic

: deslealtad

The general's unfaith in abandoning allies shocked the neighboring states and shattered alliances.

Examples

He could not forgive the unfaith that had destroyed their partnership.
His unfaith to the team was shocking.
Stories of unfaith among trusted friends have been told throughout history.
The betrayal revealed her unfaith to her friends.
The betrayal revealed her unfaith to her friends.
He could not forgive the unfaith that had destroyed their partnership.
Stories of unfaith among trusted friends have been told throughout history.

Synonyms

betrayal

vsunfaith

197 3.9

An act of not being loyal to someone, for example telling their secrets or helping an enemy

is the broader lack of loyalty or trust rather than a single act

infidelity

vsunfaith

79 6.9

A sexual or romantic relationship with someone who is not your partner

is broader covering loyalty or trust issues beyond personal relationships

disloyalty

vsunfaith

13 4.1

Not supporting a person, group, or cause who trusts you

is similar but also covers acts that betray trust and treachery

perfidy

vsunfaith

Formal

4 9.9

A dishonest act that breaks someone's trust

emphasizes the general lack of loyalty or trust beyond that act

unfaithfulness

vsunfaith

1 6.1

Not being loyal to a partner, for example having a secret romantic or sexual relationship

is the broader term for lack of loyalty or trust beyond relationships

faithlessness

vsunfaith

1 7.7

Not being loyal or keeping promises to people who trust you

is the general state including lack of trust and acts of treachery

perfidiousness

vsunfaith

Formal

9.9

A way of acting that is disloyal and betrays someone's trust

is the broader concept including both actions and a lack of trust

untrustiness

vsunfaith

8.5

A state in which someone or something cannot be trusted

focuses more on loyalty as well as the act of betraying trust

Antonyms

trust

699 1.0

Strong belief that a person or thing is honest and reliable

loyalty

503 1.3

Strong and lasting support for a person, group, or idea

How Loyal

devotion

39 3.9

loyalty

503 1.3

unfaith

Archaic

9.7

disloyalty

13 4.1

betrayal

197 3.9

Surface Forms

unfaith singular

unfaiths plural

Morphology

unfaith = faith (semi-transparent) = un + faith

Formally 'un-' + 'faith' is clear, but the sense 'betrayal/treachery' relies on an older or less salient sense of 'faith' = 'loyalty' and the noun 'unfaith' is rare/archaic, so it may not be obvious to an average learner.

Etymology

Unfaith is built from un- ('not') and faith ('trust' or 'loyalty'), so it literally means 'not loyal'. That's why unfaith is used for betrayal or a lack of trust.