How to Say "conclusive" in Spanish
The most common Spanish word for “conclusive” is “decisivo” — use 'decisivo' when referring to evidence, an event, or a factor that definitively settles a matter or ends all doubt, often leading to a specific outcome.
decisivo
de-see-SEE-bohdesiˈsiβo

Examples
El último gol fue decisivo para ganar el campeonato.
The last goal was decisive for winning the championship.
Estamos en un momento decisivo de la negociación.
We are at a crucial moment in the negotiation.
Su voto será decisivo en las próximas elecciones.
His/her vote will be decisive in the next elections.
Matching Genders
This word must match the gender of the object it describes. Use 'decisivo' for masculine things (un factor decisivo) and 'decisiva' for feminine things (una victoria decisiva).
Positioning
Like most descriptive words in Spanish, 'decisivo' usually comes after the noun you are talking about, as in 'un cambio decisivo' (a decisive change).
Decisivo vs. Decidido
Mistake: “Using 'decisivo' to describe a person's personality trait.”
Correction: Use 'decidido' if you want to say a person is 'determined' or 'resolute'. Use 'decisivo' only to describe an event or thing that settles an outcome.
definitivo
deh-fee-nee-TEE-bohdefiniˈtiβo

Examples
La decisión del juez es definitiva.
The judge's decision is final.
Buscamos una solución definitiva a este problema.
We are looking for a permanent solution to this problem.
El resultado definitivo se publicará mañana.
The final result will be published tomorrow.
Matching the word it describes
This word must change its ending to match the gender and number of the person or thing it describes. Use 'definitivo' for masculine, 'definitiva' for feminine, and add an 's' for plurals.
Placement with Nouns
Usually, you place this word after the noun it describes (e.g., 'la respuesta definitiva') to emphasize that the finality is a distinguishing characteristic.
Using 'final' vs 'definitivo'
Mistake: “Using 'final' to mean a permanent solution.”
Correction: Use 'definitivo' when you mean something is settled for good. 'Final' often just refers to the last item in a sequence.
Decisivo vs. Definitivo
Related Translations
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