How to Say "diagnostic" in Spanish
The Spanish word for “diagnostic” is “diagnóstico” — B2 level.
English → SpanishB2
adjectiveB2formal
pertaining to diagnosis

Examples
Se requiere una prueba diagnóstica para confirmar la condición.
A diagnostic test is required to confirm the condition.
La herramienta diagnóstica identificó el fallo inmediatamente.
The diagnostic tool identified the failure immediately.
Agreement Rule
As an adjective, diagnóstico/a must match the gender of the noun it describes. Use diagnóstica for feminine nouns (e.g., prueba diagnóstica) and diagnóstico for masculine nouns (e.g., examen diagnóstico).
Related Translations
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