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"Decided" is a form of "decided", an adjective which is often translated as "decidido". "Decisive" is an adjective which is often translated as "decisivo". Learn more about the difference between "decided" and "decisive" below.
decided(
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An adjective is a word that describes a noun (e.g., the big dog).
adjective
a. decidido
"I've had enough," she said in a decided tone."Ya es suficiente", dijo con un tono decidido.
b. resuelto
I'm decided to be productive today.Estoy resuelto a ser productivo hoy.
a. claro
Our team had a decided advantage when their star player got expelled.Nuestro equipo tuvo una ventaja clara cuando su jugador estrella fue expulsado.
b. marcado
We see a decided improvement in your health.Vemos una mejora marcada en tu salud.
c. categórico
Your exam results today show a decided improvement.Los resultados del examen de hoy muestran una mejora categórica.
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decisive(
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An adjective is a word that describes a noun (e.g., the big dog).
adjective
a. decisivo
That battle proved decisive in winning the war.Esa batalla resultó ser decisiva para ganar la guerra.
The president's performance in the third debate was the decisive factor in him winning reelection.El desempeño del presidente en el tercer debate fue el factor decisivo en que ganara la reelección.
a. decidido
You're so wishy-washy. You should be more decisive.Tienes tan poca personalidad. Deberías ser más decidido.
b. resuelto (person)
She began telling me, in a calm and decisive voice, exacty what I needed to do.Empezó a decirme, con voz tranquila y resuelta, qué era exactamente lo que tenía que hacer.
c. tajante (reply)
When asked by a journalist about her recent divorce, the actress gave him a decisive answer.Cuando un periodista le preguntó acerca de su reciente divorcio, la actriz le dio una respuesta tajante.
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