How to Say "infidelity" in Spanish
The Spanish word for “infidelity” is “cuernos” — B2 level. This is a very common word in everyday Spanish.
English → SpanishB2
nounB2informal
adultery
Examples
Descubrió que su pareja le estaba poniendo los cuernos con un compañero de trabajo.
She discovered that her partner was cheating on her with a coworker.
Nadie quiere llevar los cuernos en una relación.
Nobody wants to be cheated on (literally: to carry the horns) in a relationship.
Fixed Phrase
This meaning almost always appears in the fixed phrase 'poner los cuernos' (to cheat). You cannot separate the words or use them individually to mean infidelity.
Using the Singular
Mistake: “Mi esposo me puso un cuerno.”
Correction: Mi esposo me puso los cuernos. (The idiomatic phrase always requires the plural 'los cuernos'.)
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