insufficient

相当不足

Emphasizes that something is significantly not enough.

强调某物远远不够。

明显不足

Highlights that the insufficiency is obvious to anyone.

强调不足之处对任何人来说都是显而易见的。

简直不足

Indicates that the lack is plain and obvious, without need for further explanation.

表示缺少是简单明了的，无需进一步解释。

完全不足

A more formal way to say completely or entirely not enough.

一种更正式的说法，表示完全或彻底不够。

严重不足的

Expresses that the lack is very bad and regrettable.

在数量或总量上不够

是不足的

Used to state that something is not enough.

用于说明某物不够。

证明不足

Used when something is shown to be not enough after being tested or used.

用于指某物在经过测试或使用后被证明是不够的。

对于…不足

Used to specify the purpose or person/thing for which something is not enough.

用于指明某物对于特定目的、人或事物是不够的。