How to Say "rapidly" in Spanish
The Spanish word for “rapidly” is “rápidamente” — A1 level. This is a very common word in everyday Spanish.

Examples
El niño se comió el helado rápidamente antes de que se derritiera.
The child quickly ate the ice cream before it melted.
Necesitamos responder a su correo electrónico lo más rápidamente posible.
We need to respond to their email as quickly as possible.
La tecnología avanza tan rápidamente que es difícil mantenerse al día.
Technology advances so rapidly that it is difficult to keep up.
The '-mente' Rule
This is how Spanish creates its version of the English '-ly' ending. You take the feminine form of the adjective ('rápida') and add '-mente' to it.
Adverb Placement
Adverbs usually go right after the verb they are describing, or sometimes at the very beginning or end of the sentence for emphasis.
Confusing Adjective and Adverb
Mistake: “Habló rápido sobre el tema.”
Correction: Habló rápidamente sobre el tema. (While 'rápido' is often used as a short adverb in spoken Spanish, 'rápidamente' is the standard, correct form when describing a verb's action.)
Related Translations
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