How to Say "greatly" in Spanish
The most common Spanish word for “greatly” is “muchísimo” — use this informal but very common adverb when you want to strongly emphasize the degree of something, often expressing a high level of liking or intensity..
muchísimo
Examples
Me gusta muchísimo tu nuevo coche.
I like your new car very much (a whole lot).
altamente
/al-TAH-men-te//alˈta.men.te/
Examples
El nuevo software es altamente eficiente.
The new software is highly efficient.
La situación se considera altamente riesgosa.
The situation is considered extremely risky.
El jurado encontró su testimonio altamente creíble.
The jury found her testimony highly credible.
Forming Adverbs with -mente
Most Spanish adverbs like 'altamente' are formed by taking the feminine singular form of an adjective ('alta') and adding the ending '-mente.' This works just like adding '-ly' in English.
Invariable Word
Since 'altamente' is an adverb, it always stays the same. It does not change its ending to match the gender (masculine/feminine) or number (singular/plural) of the word it modifies.
Confusing Adverb and Adjective
Mistake: “La situación es alta compleja. (Using the adjective 'alta' instead of the adverb.)”
Correction: La situación es altamente compleja. (Use 'altamente' because it modifies the adjective 'compleja,' telling us *how* complex it is.)
extremadamente
/eks-treh-mah-dah-men-teh//eɣstɾemaˈðamente/
Examples
La prueba de matemáticas fue extremadamente difícil.
The math test was extremely difficult.
Ella habla inglés extremadamente bien.
She speaks English extremely well.
El presidente se mostró extremadamente cauteloso con su respuesta.
The president showed himself to be extremely cautious with his response.
The '-mente' Adverb Pattern
Most adverbs that show how something is done or how much are created by taking the feminine form of an adjective (like 'extrema') and adding the ending '-mente'.
Always Invariable
Unlike adjectives, adverbs like 'extremadamente' never change their form. They are the same whether you are talking about one thing or many things, and regardless of gender.
Using the Masculine Form
Mistake: “La cosa es extremo difícil.”
Correction: La cosa es extremadamente difícil. (The base adjective is 'extremo,' but for the adverb, you must use the '-mente' ending.)
infinito
/een-fee-nee-toh//in.fi.ˈni.to/
Examples
Te lo agradezco infinito.
I thank you immensely.
La película me gustó infinito.
I liked the movie a whole lot.
The 'Power-Up' Word
When used after a verb like 'agradecer' (to thank), it doesn't change its ending. It stays 'infinito' because it's describing the action, not a thing.
Choosing Between 'Muchísimo' and 'Altamente'
Related Translations
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