insufficient
adj. 不充分的，不够重要的
例句
His salary is insufficient to meet his needs.
他的薪水不够应付需要。
《牛津词典》
Facilities for people with disabilities are still insufficient.
供残疾人使用的设施仍然不足。
《柯林斯英汉双解大词典》
Our industry suffers through insufficient investment in research.
我们的工业因研究投入不足而大吃苦头。
