interesados
/een-teh-reh-SAH-dohs/
interested

When describing people who are curious or focused on something, use the word interesados (interested).
interesados(Adjective)
interested
?describing people or things
keen
?showing eagerness
,concerned
?about a topic
📝 In Action
Solo los estudiantes interesados se quedaron después de clase.
A2Only the interested students stayed after class.
Estamos interesados en invertir en energías renovables.
B1We are interested in investing in renewable energy.
¿Están interesados en el nuevo proyecto?
A2Are you (plural) interested in the new project?
💡 Grammar Points
Agreement Rule
As an adjective, 'interesados' must match the thing it describes. Since this form ends in '-os,' it is used for masculine plural things or mixed groups (e.g., two girls and one boy are 'interesados').
❌ Common Pitfalls
Using the wrong preposition
Mistake: "Interesados a algo."
Correction: Always use the preposition 'en' (in) after 'interesados': 'interesados en algo'.
⭐ Usage Tips
Feeling vs. Action
'Interesados' is a past participle used as an adjective, which means it usually pairs with the verb 'estar' (to be in a state) to describe a feeling: 'Estamos interesados' (We are interested).

Interesados can refer to the involved stakeholders or 'interested parties' in a deal or transaction.
interesados(Noun)
interested parties
?people involved in a process or transaction
,stakeholders
?in a business or project
those concerned
?people who need to know
📝 In Action
La lista de interesados en la subasta es muy larga.
B2The list of interested parties in the auction is very long.
Debemos notificar a todos los interesados sobre el cambio de horario.
C1We must notify all those concerned about the schedule change.
💡 Grammar Points
Adjective to Noun
In Spanish, you can often turn an adjective into a noun by adding an article (like 'los' or 'un'). Here, 'los interesados' means 'the interested ones' (people).
⭐ Usage Tips
Formal Contexts
This noun form is much more formal than simply saying 'la gente que está interesada' (the people who are interested). Use it in official documents, business emails, or news reports.
✏️ Quick Practice
💡 Quick Quiz: interesados
Question 1 of 1
Which sentence uses 'interesados' as a noun (referring to people)?
📚 More Resources
Frequently Asked Questions
How is 'interesados' different from 'interesantes'?
'Interesados' means 'interested' (describing someone who *feels* interest). 'Interesantes' means 'interesting' (describing something that *causes* interest). For example: 'El libro es interesante' (The book is interesting), and 'Nosotros estamos interesados' (We are interested).
When should I use 'interesados' versus 'interesadas'?
'Interesados' (masculine plural) is used for a group of men, or a mixed group of men and women. 'Interesadas' (feminine plural) is used only when the entire group consists of women or feminine nouns.