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unfaithfulness

[/ʌnˈfeɪθfəlnəs/]
noun
infidelidade
1. the quality or state of being disloyal, especially in a romantic relationship; breach of trust or promise
His unfaithfulness destroyed their marriage.
A infidelidade dele destruiu o casamento deles.
2. lack of accuracy or precision in representation or execution
The unfaithfulness of the translation was evident.
A infidelidade da tradução era evidente.
3. unreliability or inconsistency in performance or behavior
The unfaithfulness of the equipment made it unsuitable for the task.
A falta de confiabilidade do equipamento o tornou inadequado para a tarefa.
NYC Slang
playing around / cheating
Synonyms
infidelitydisloyaltybetrayaltreacheryinconstancy
Antonyms
faithfulnessloyaltyfidelityconstancydevotion

Regional Variations

General Brazilian
infidelidade
most common term used in romantic contexts
General Brazilian
deslealdade
used for general disloyalty
Portugal
infidelidade
primary term in Portuguese Portuguese
Portugal
falta de fidelidade
more formal alternative

Related Idioms & Phrases

caught red-handed in unfaithfulness
a moment of unfaithfulness
to confess one's unfaithfulness
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