Как по Английски будет insuffisamment

adverb

In a way that is not well organized or skilled and wastes time, energy, money, etc.

Примеры использования:

The hotel is inefficiently run., when wood burns inefficiently, it creates smoke.

adverb

In a way that lacks the quality or quantity required; unsatisfactorily.

Примеры использования:

A hastily trained, inadequately equipped army

adverb

To an inadequate degree; not enough.

Примеры использования:

A number of important issues were covered insufficiently