unthinkable, inconceivable
Para mí, esto resulta casi inconcebible.
To me, this is almost inconceivable.
— Ha vuelto (2015)
Inconcebible.
Inconceivable.
— La princesa prometida (1987)
Su belleza inconcebible reclama mi atención instantáneamente.
Its inconceivable beauty instantly demands my attention.
Eso es inconcebible.
That's inconceivable.