1
insufficiency of [something]
The insufficiency of evidence forced the case to be dismissed.
证据不足导致案件被驳回。
不足；缺乏；短缺
先理解核心含义，再看它在真实句子里的用法。
不足；缺乏；短缺
The state of being not enough; a shortage or lack.
The insufficiency of evidence forced the case to be dismissed.
证据不足导致案件被驳回。
不足；缺乏；不够的状态。
The lack of sufficiency: a shortage, the state of having or being not enough (of something).
The company's failure was due to an insufficiency of funds.
公司的失败是由于资金不足。
Chronic sleep insufficiency can lead to serious health problems.
长期睡眠不足会导致严重的健康问题。
The court dismissed the case because of insufficiency of evidence.
由于证据不足，法庭驳回了此案。
The insufficiency of evidence forced the case to be dismissed.
证据不足导致案件被驳回。
常见于医学语境，尤指器官功能不全。
Chronic venous insufficiency is a common condition.
慢性静脉功能不全是一种常见疾病。
Not this
The water is insufficiency.
Use this
The water is insufficient.
insufficiency 是名词，不是形容词。表示“不充分”时，应使用形容词 insufficient。
Not this
The insufficiency of the data are clear.
Use this
The insufficiency of the data is clear.
insufficiency 是单数名词，谓语动词应用单数形式 is，而非复数 are。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
肾功能不全
The patient was diagnosed with renal insufficiency.
这名患者被诊断为肾功能不全。
心功能不全
Cardiac insufficiency can cause shortness of breath.
心功能不全可能导致气短。
呼吸功能不全
Smoking can lead to respiratory insufficiency.
吸烟可导致呼吸功能不全。
肾上腺功能不全
Adrenal insufficiency can cause fatigue and low blood pressure.
肾上腺功能不全可导致疲劳和低血压。
静脉功能不全
Chronic venous insufficiency can cause leg swelling.
慢性静脉功能不全可导致腿部肿胀。
Use insufficiency naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
in-（不）＋sufficiency（充足）＝不充足；记‘insufficiency’就是东西不够用，像米袋快见底。
语域：formal 常见场景：医学或学术写作、正式报告与公文 insufficiency 通常属于正式用语，多用于医疗、学术或官方文件等书面场合；日常口头交流中更常说 lack 或 shortage。
目标词 insufficiency 读作 /ˌɪnsəˈfɪʃənsi/。真正押韵的词是 efficiency、deficiency、proficiency、sufficiency，都以 /ˈfɪʃənsi/ 结尾，重音落在 -fi- 上。frequency（/ˈfriːkwənsi/）和 agency（/ˈeɪdʒənsi/）虽然也以 -ency 结尾，但读音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.