How to Say "self-acting" in Spanish
The Spanish word for “self-acting” is “automático” — A1 level. This is a very common word in everyday Spanish.

Examples
El ascensor es completamente automático; no tienes que pulsar ningún botón.
The elevator is completely automatic; you don't have to press any buttons.
La respuesta automática del correo electrónico es muy útil cuando estoy de vacaciones.
The automatic email response is very useful when I am on vacation.
Necesitas una cámara automática para tomar fotos rápidas.
You need an automatic camera to take quick photos.
Adjective Agreement
Like most Spanish adjectives, 'automático' must change its ending to match the thing it describes. Use 'automática' for feminine singular nouns (la puerta), 'automáticos' for masculine plural nouns (los coches), and 'automáticas' for feminine plural nouns (las respuestas).
Forgetting the Accent
Mistake: “Escribir 'automatico' sin tilde.”
Correction: The stress falls on the third-to-last syllable, so you must write it with an accent mark: 'automático'.
Related Translations
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