unthinkable
词形变化：
副词: unthinkably | 名词: unthinkability |
同义词：
unbelievable | absurd | incredible | inconceivable | impossible | ridiculous | preposterous | unheard-of | outlandish | unlikely | improbable | extraordinary | unimaginable | fantastic |
反义词：
词义辨析：
同义:
a.极端不可能的
unbelievable
incredible
impossible
inconceivable
absurd
ridiculous
preposterous
outlandish
unheard-of
反义:
a.想像不出的
thinkable