How to Say "firmly" in Spanish
The Spanish word for “firmly” is “firmemente” — B1 level. This is a very common word in everyday Spanish.

Examples
Tienes que sujetar el pasamanos firmemente.
You have to hold the handrail firmly.
Ella cree firmemente en la justicia.
She firmly believes in justice.
El director se opuso firmemente a la nueva propuesta.
The director firmly opposed the new proposal.
The '-mente' trick
This word is made by taking the adjective 'firme' and adding '-mente'. It works just like adding '-ly' in English to turn 'firm' into 'firmly'.
One ending is enough
If you use two words like this together (e.g., 'clearly and firmly'), Spanish only puts the '-mente' on the second word. You would say 'clara y firmemente'.
Don't change the ending
Mistake: “Él camina firmementes.”
Correction: This word is 'always the same' (it's an adverb). It doesn't matter if you're talking about one person or many; it always stays 'firmemente'.
Related Translations
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.