Как по Английски будет недостаточно

noun

A lack or shortage.

Примеры использования:

Deficiencies in material resources

Lack of an adequate quantity or number

adverb

In a way that causes something not to work correctly

Примеры использования:

A defectively designed product, the accident was due to the defectively fitted central heating boil…

adverb

In a way that is not good enough

Примеры использования:

The review failed to show that the attorney had performed deficiently., the system was deficiently …

adverb

To an inadequate degree; not enough.

Примеры использования:

A number of important issues were covered insufficiently

phrase

Much less than you want or need

Примеры использования:

There's not nearly enough food for all these people!, there still wasn't nearly enough evidence to …