How to Say "hard-working" in Spanish
The most common Spanish word for “hard-working” is “trabajador” — use this form when describing a male person or a general, non-gendered group as diligent and putting in a lot of effort..
trabajador
trah-bah-hah-DOR/tɾaβaxaˈðoɾ/

Examples
Mi hermano es muy trabajador y siempre termina sus tareas a tiempo.
My brother is very hard-working and always finishes his tasks on time.
Los estudiantes más trabajadores obtuvieron las mejores notas.
The most diligent students got the best grades.
Adjective Agreement
Like most Spanish describing words, 'trabajador' must match the person or thing it describes in number (singular/plural) and gender (masculine/feminine). For example: 'una mujer trabajadora' (a hard-working woman).
Incorrect Plural Form
Mistake: “Saying 'trabajadores' for a singular noun, like 'el coche trabajadores'.”
Correction: Only add '-es' for plural: 'los coches son trabajadores' (if the cars were somehow diligent), but 'el coche es trabajador' (singular car).
trabajadora
/tra-ba-ha-DOR-ah//tɾaβaxaˈðoɾa/

Examples
Mi madre es la persona más trabajadora que conozco.
My mother is the most hard-working person I know.
Necesitamos contratar a una secretaria que sea muy trabajadora.
We need to hire a secretary who is very hard-working.
Matching Gender
Because this word ends in 'a', it specifically describes a woman, a girl, or any feminine object. If you were talking about a man, you would use 'trabajador'.
Using it for groups
Mistake: “Ellas son trabajadora.”
Correction: Ellas son trabajadoras. Remember to add an 's' if you are talking about more than one person.
Gender Agreement is Key
Related Translations
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.

