How to Say "developmental delay" in Spanish
The Spanish word for “developmental delay” is “retraso” — B2 level.

Examples
El informe médico indica un ligero retraso en la adquisición del lenguaje.
The medical report indicates a slight delay in language acquisition.
La región sufre un retraso tecnológico considerable respecto a la capital.
The region suffers a considerable technological lag compared to the capital.
Sensitivity Warning
Mistake: “Using 'retraso' or its related adjective 'retrasado' as a casual insult.”
Correction: While sometimes heard in very informal or offensive speech, avoid using this word to call someone 'slow' or 'stupid,' as it refers to clinical conditions and is highly insensitive. Stick to using it for schedules or formal development discussions.
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.