How to Say "improved" in Spanish
The Spanish word for “improved” is “mejorado” — A2 level. This is a very common word in everyday Spanish.

Examples
Este es un diseño mejorado del motor.
This is an improved engine design.
El servicio mejorado incluye desayuno gratis.
The enhanced service includes free breakfast.
He visto un rendimiento mejorado en tu trabajo.
I have seen an improved performance in your work.
Gender and Number Agreement
Since this is an adjective, it must match the noun it describes. Use 'mejorada' for feminine nouns and 'mejorados/mejoradas' for plurals.
The '-ed' Form
This word is the 'past participle' of the verb 'mejorar.' It acts just like the '-ed' ending in English (improve -> improved).
Mejor vs. Mejorado
Mistake: “Using 'mejor' when you mean 'mejorado'.”
Correction: Use 'mejor' for 'better' (a comparison) and 'mejorado' for 'improved' (the result of a change).
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