unthinkable
US /ʌnˈθɪŋ.kə.bəl/
UK /ʌnˈθɪŋ.kə.bəl/
1.
không thể tưởng tượng nổi
so shocking that it cannot be imagined as possible:
:
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Today, we see growing acceptance of gay marriage - something that would have been unthinkable a generation ago.