ledo engano

== Portuguese == === Etymology === Literally, “merry mistake”, referring to someone's feeling (perhaps naively) joyful while being unknowingly wrong about something, until they realize the true nature thereof. Compare English ignorance is bliss and happily (in the sense “with good will; in all happiness; willingly“). === Pronunciation === === Noun === ledo engano m (plural ledos enganos) wrong take; serious/grave/big mistake (a mistaken conception or assumption that one held before realizing the wrongness of it)