utilizado
/u-ti-li-THA-do/
used

When describing an object that has been previously employed or consumed, we use the adjective utilizado.
utilizado(Adjective)
used
?having been previously employed or consumed
utilized
?put to practical use
,second-hand
?pre-owned item
📝 In Action
Compramos un coche utilizado, pero está en muy buen estado.
A2We bought a used car, but it's in very good condition.
El material utilizado para la construcción es reciclado.
B1The material utilized for the construction is recycled.
Necesitas la herramienta utilizada en el taller.
B1You need the tool used in the workshop.
💡 Grammar Points
Matching the Noun
As an adjective, 'utilizado' must change its ending to match the thing it describes. If the noun is feminine (la herramienta), you must say 'utilizada'.
❌ Common Pitfalls
Forgetting Gender Change
Mistake: "La computadora utilizado."
Correction: La computadora utilizada. Remember that adjectives must agree with the noun they modify.
⭐ Usage Tips
Formal vs. Common Usage
'Utilizado' is slightly more formal than 'usado,' although both mean 'used.' 'Utilizado' often emphasizes that something was put to its intended purpose.

Utilizado is also the past participle, used to form perfect tenses, signifying a completed action, like finishing this drawing.
utilizado(Verb (Participle))
used
?as part of a perfect tense
put to use
?in the passive voice
📝 In Action
Hemos utilizado la bicicleta toda la semana.
A1We have used the bike all week.
El software ha sido utilizado por millones de personas.
B2The software has been used by millions of people.
Nunca había utilizado esa aplicación antes.
B1I had never used that application before.
💡 Grammar Points
Creating Perfect Tenses
To talk about actions that are completed, you always combine the correct form of the verb 'haber' (to have) with 'utilizado'. Example: 'Yo he utilizado' (I have used).
The Passive Voice
When an object receives the action, you use a form of 'ser' (to be) followed by 'utilizado,' which must change to match the object. Example: 'La casa fue utilizada' (The house was used).
❌ Common Pitfalls
Using 'Tener' Instead of 'Haber'
Mistake: "Tengo utilizado la computadora."
Correction: He utilizado la computadora. In Spanish, you must use 'haber' (not 'tener') to form these completed action tenses.
⭐ Usage Tips
The 'Ado/Ido' Rule
The past participle of nearly all -AR verbs (like utilizar) ends in -ADO.
✏️ Quick Practice
💡 Quick Quiz: utilizado
Question 1 of 2
Which sentence correctly uses 'utilizado' as an adjective?
📚 More Resources
Frequently Asked Questions
What is the difference between 'utilizado' and 'usado'?
Both mean 'used,' but 'utilizado' tends to emphasize that something was put to its intended purpose (utilized), and it feels slightly more formal. 'Usado' is often preferred when talking simply about second-hand items (e.g., 'ropa usada' – used clothes).
Does 'utilizado' ever change form when used with 'haber' (e.g., in 'he utilizado')?
No. When 'utilizado' is combined with 'haber' to form a completed action tense (like 'he utilizado,' 'has utilizado'), it is a verb form, and it is always fixed in the masculine singular form ('utilizado'), regardless of who is doing the action or what object is involved.