How to Say "uncertain" in Spanish
The most common Spanish word for “uncertain” is “dudoso” — use 'dudoso' when referring to a result, outcome, or fact that is not clear or is questionable..
dudoso
/doo-DOH-soh//duˈðoso/

Examples
El éxito del proyecto es dudoso.
The success of the project is doubtful.
Juan está dudoso sobre qué coche comprar.
Juan is undecided about which car to buy.
Es un resultado dudoso y necesitamos revisarlo.
It is an uncertain result and we need to check it.
Matching the word to the noun
Since this is a describing word, it must match the thing it describes. Use 'dudoso' for masculine items and 'dudosa' for feminine items.
Choosing between 'Ser' and 'Estar'
Use 'ser' when the thing itself is naturally uncertain (un futuro dudoso). Use 'estar' when a person is currently feeling unsure (estoy dudoso).
Confusing 'undecided' with 'doubtful'
Mistake: “Using 'estoy dudoso' to mean 'I am a shady person.'”
Correction: Say 'estoy dudoso' for 'I'm undecided' and 'soy dudoso' if you mean you are a questionable character (though this is rare to say about oneself!).
problemático
Examples
Ella es una persona muy problemática.
She is a very difficult/troublesome person.
Dudoso vs. Problemático
Related Translations
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