How to Say "assumption" in Spanish
The most common Spanish word for “assumption” is “suposición” — use this word when you are talking about believing something to be true without having any proof or evidence.
suposición
Examples
Es solo una suposición, no tengo pruebas todavía.
It is just an assumption; I don't have proof yet.
supuesto
soo-PWEHS-tohsuˈpwesto
Examples
Partimos del supuesto de que todos los invitados vendrán.
We're starting from the assumption that all the guests will come.
En el supuesto de que llueva, cancelaremos el picnic.
In the event that it rains, we will cancel the picnic.
A Special Verb Form for Hypotheticals
The phrase 'en el supuesto de que' (in the event that) signals a hypothetical situation. Because it's not a fact, the verb that follows often changes into a special 'what if' form called the subjunctive. For example: 'En el supuesto de que venga...' (In the event that he comes...).
hipótesis
Examples
Tengo una hipótesis sobre por qué se perdió el gato.
I have a hypothesis about why the cat got lost.
premisa
pre-MEE-sahpɾeˈmisa
Examples
La película tiene una premisa muy original.
The movie has a very original premise.
Partimos de la premisa de que todos quieren colaborar.
We are starting from the assumption that everyone wants to collaborate.
Es una premisa equivocada que llevará al fracaso.
It is a wrong premise that will lead to failure.
Always Feminine
Even though it ends in 'a', it doesn't change. It is always 'la premisa' or 'unas premisas' regardless of the context.
Describing Premisa
When you use an adjective to describe it, the adjective must also be feminine, like 'premisa falsa' (false premise).
The 'Premises' Trap
Mistake: “Using 'premisa' to talk about a physical building.”
Correction: Use 'local' or 'instalaciones'. 'Premisa' is only for ideas or logic.
Suposición vs. Supuesto
Related Translations
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.