How to Say "impossible" in Spanish
The Spanish word for “impossible” is “imposible” — A2 level. This is a very common word in everyday Spanish.

Examples
Es imposible terminar todo el trabajo hoy.
It's impossible to finish all the work today.
Volar sin un avión es físicamente imposible.
Flying without a plane is physically impossible.
Me resulta imposible creer que no lo sabías.
I find it impossible to believe that you didn't know.
One Form Fits All
imposible is a great adjective because it doesn't change for masculine or feminine things. It's el reto imposible (the impossible challenge) and la tarea imposible (the impossible task). One less thing to worry about!
Use with the Verb 'ser'
To say something is impossible, you'll almost always use the verb ser. For example, Será imposible llegar a tiempo. (It will be impossible to arrive on time).
Extra 'de'
Mistake: “Es imposible de hacer esto.”
Correction: Es imposible hacer esto. (It's impossible to do this.) Why it's right: In Spanish, you don't need the little word 'de' (of/to) between 'imposible' and the action that follows. Just connect them directly: 'imposible + [action]'.
Related Translations
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