- 1impossible to imagine or accept synonym inconceivable
- 2 It was unthinkable that she could be dead. opposite thinkable
NAmE//ʌnˈθɪŋkəbl//unthinkable (for somebody) (to do something)unthinkable (that…)
the unthinkablejump to other results
noun [singular] Suddenly the unthinkable happened and he pulled out a gun. The time has come to think the unthinkable (= consider possibilities that used to be unacceptable).