How to Say "considerable" in Spanish
The most common Spanish word for “considerable” is “importante” — use this when 'considerable' refers to the significance or importance of something, rather than just its size or quantity..
importante
/eem-por-TAHN-teh//impoɾˈtante/

Examples
Es un avance importante para la ciencia.
It is a considerable advance for science.
Es muy importante estudiar.
It's very important to study.
Tengo una reunión importante mañana.
I have an important meeting tomorrow.
Él es una figura importante en la política local.
He is an important figure in local politics.
Same for Everyone
Importante ends in '-e', which is great news! It means you use the same form for both masculine and feminine things. For example: 'el libro importante' (the important book) and 'la casa importante' (the important house).
Placement is Key
Usually, importante comes after the thing it describes, just like in English. For example, 'una reunión importante' (an important meeting). Placing it before ('una importante reunión') adds a bit of emphasis or a more formal tone.
Your Go-To Verb: 'ser'
To say something is important, you'll almost always use the verb 'ser'. For example, 'Ser honesto es importante' (Being honest is important).
The 'Es importante que...' Rule
Mistake: “Es importante que tú estudias mucho.”
Correction: Es importante que tú estudies mucho. When you say it's important for *someone else* to do something, the verb that follows needs a special ending. This is a huge pattern in Spanish!
razonable
rah-thoh-NAH-bleh (Spain) / rah-soh-NAH-bleh (L. Am.)/raθoˈnaβle/

Examples
El proyecto requirió un esfuerzo razonable de todo el equipo.
The project required a considerable effort from the entire team.
Hemos visto un avance razonable en las negociaciones.
We have seen moderate/significant progress in the negotiations.
Quantifier
In this meaning, 'razonable' acts like a quantifier, emphasizing that the amount or degree was sufficient or impressive, not just 'sensible'.
respetable
/rreh-speh-TAH-bleh//respeˈtaβle/

Examples
Había una cantidad respetable de gente en el concierto.
There was a considerable amount of people at the concert.
Llevaban una velocidad respetable.
They were traveling at a substantial speed.
Distinguishing 'Importante' from Quantity-Based Terms
Related Translations
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