verb

fallar

fail

No lograr hacer algo correctamente o no alcanzar el resultado deseado.

Definition & meaning

Fallar is a Spanish verb with several related meanings:

  1. To fail or be unsuccessful
    It describes not achieving a goal or not producing the expected result.

    • El plan falló. — “The plan failed.”
    • Falló en su intento. — “He/She failed in the attempt.”
  2. To make a mistake or be wrong
    It can mean giving an incorrect answer, judgment, or prediction.

    • El testigo falló al identificar al sospechoso. — “The witness was wrong when identifying the suspect.”
  3. To miss a target or opportunity

    • Falló el tiro. — “He/She missed the shot.”
    • No falles esta oportunidad. — “Don’t miss this opportunity.”
  4. To malfunction or break down
    It is commonly used for machines, systems, or body parts that stop working correctly.

    • El motor falló. — “The engine broke down.”
    • Me está fallando la memoria. — “My memory is failing me.”
  5. To let someone down or fail someone
    With the indirect-object pronoun le, it can mean not supporting someone or not keeping a promise.

    • No quiero fallarte. — “I don’t want to let you down.”
  6. To rule or give a judicial decision
    In legal contexts, fallar means for a court to make a ruling.

    • El tribunal falló a favor del demandante. — “The court ruled in favor of the claimant.”
    • El juez falló en contra de la empresa. — “The judge ruled against the company.”

Grammar & Word origin

Fallar is a regular -ar verb. Its stem is fall-, followed by the infinitive ending -ar.

Examples of conjugation:

  • yo fallo — “I fail / I miss”
  • tú fallas — “you fail / you miss”
  • él/ella falla — “he/she fails / misses”
  • falló — “he/she/it failed”
  • fallará — “he/she/it will fail”

The verb comes from Latin fallere, meaning “to deceive,” “to disappoint,” or “to fail.” Its meanings developed from the idea of something not producing the expected result.

Synonyms & antonyms

Synonyms

  • fracasar — “to fail” in a broad sense, especially when an undertaking or person does not achieve success. It is often stronger and more general than fallar.
  • equivocarse — “to make a mistake” or “to be wrong.” This focuses on an incorrect action or judgment rather than on a failed result.
  • errar — “to err” or “to be mistaken.” It is more formal or literary than fallar and can also mean missing a target.
  • averiarse — “to break down” or “to malfunction.” It is appropriate for machines and systems, whereas fallar is more widely applicable.
  • defraudar — “to disappoint” or “to let down.” It is close to fallarle a alguien but emphasizes the other person’s disappointment.

Antonyms

  • acertar — “to get right,” “to hit the target,” or “to make the correct choice.” It is the clearest antonym when fallar means being wrong or missing.
  • funcionar — “to work” or “to function.” It is the opposite when fallar refers to a machine or system malfunctioning.
  • triunfar — “to succeed” or “to triumph.” It contrasts with fallar when referring to an unsuccessful attempt or project.
  • cumplir — “to fulfill” or “to keep.” It can contrast with fallarle a alguien when referring to keeping a promise or meeting an obligation.

Common phrases & collocations

  • fallar un examen [?](vocabuo://word/fallar un examen) — to fail an exam
  • fallar un tiro [?](vocabuo://word/fallar un tiro) — to miss a shot
  • fallar una oportunidad [?](vocabuo://word/fallar una oportunidad) — to miss an opportunity
  • fallar en algo [?](vocabuo://word/fallar en algo) — to fail at something
  • fallarle a alguien [?](vocabuo://word/fallarle a alguien) — to let someone down
  • fallar a favor de alguien [?](vocabuo://word/fallar a favor de alguien) — to rule in someone’s favor
  • fallar en contra de alguien [?](vocabuo://word/fallar en contra de alguien) — to rule against someone
  • fallo del sistema [?](vocabuo://word/fallo del sistema) — system failure
  • fallo técnico [?](vocabuo://word/fallo técnico) — technical fault or malfunction

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Examples

No quiero fallar en el examen de matemáticas.verb

I don't want to fail the math exam.

No podemos fallar en nuestra misión.verb

We cannot fail in our mission.

Si no estudias, puedes fallar en la tarea.verb

If you don't study, you can fail the task.

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