in·suf·fi·cien·cy
noun/ˌɪnsəˈfɪʃənsi/
/ˌɪnsəˈfɪʃənsi/
[uncountable, countable] (plural insufficiencies)
(formal or specialist)- the fact that something is not large, strong or important enough for a particular purpose
不充分的；不足的；不够重要的 - cardiac insufficiency
心功能不全
- cardiac insufficiency