unthinkable
adjectivemasculine/feminine/ĩpẽˈsavɛɫ/medium
im·pen·sá·vel
Definition
Incapable of being thought of or imagined; too unlikely or undesirable to be considered a possibility.
Such a betrayal was unthinkable to her.
It was once unthinkable that humans would walk on the moon.
Common collocations
unthinkable actpreviously unthinkablesimply unthinkable
Etymology
Do prefixo 'im-' + 'pensável'.