Как по Английски будет 未充分利用

adjective

Used too little; insufficiently used.

Примеры использования:

The underused office buildings were torn down early last year

verb

Use (something) too little.

Примеры использования:

Farmers underuse the fertilizers

noun

The fact of not using something enough, or of something not being used enough

Примеры использования:

There is underutilization of dental services by low-income children., productivity losses stem from…

verb

Underuse (something).

Примеры использования:

Sincerity and ernestitude are underutilized.