How to Say "tested" in Spanish
The most common Spanish word for “tested” is “probado” — use 'probado' when referring to something that has already undergone trials, is proven effective, or has a track record of success..
probado
pro-BAH-doh/pɾoˈβaðo/

Examples
Necesitamos una solución probada, no un experimento.
We need a proven solution, not an experiment.
Su lealtad ya está probada después de tantos años.
His loyalty is already proven after so many years.
Es un método probado para reducir el estrés.
It is a tested method for reducing stress.
Agreement is Key
As an adjective, 'probado' must match the thing it describes in gender (masculine/feminine) and number (singular/plural). Remember: 'probado' (m. sing.), 'probada' (f. sing.), 'probados' (m. plural), 'probadas' (f. plural).
Using 'Probado' for People
Mistake: “El científico está probado.”
Correction: La teoría está probada. (The theory is proven.) While you can say a person's loyalty is proven, it's more natural to apply 'probado' to things like methods, facts, or results.
experimentado
/ex-peh-ree-men-TAH-doh//ekspeɾimenˈtaðo/

Examples
He experimentado muchos cambios este año.
I have experienced many changes this year.
El científico ha experimentado con nuevas medicinas.
The scientist has experimented with new medicines.
The 'Finished Action' Form
When used as a verb, 'experimentado' usually follows the word 'he', 'has', 'ha', etc., to show something you have already done.
Probado vs. Experimentado
Related Translations
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