I felt loneliness from his words.

He is a brave soldier, always accomplishing his mission.

Due to the shortage of military food, the soldiers are feeling hungry.

His energy gave out quickly.

Insufficiency of water can have a negative impact on health.

I don't have enough money to buy a new car.

He felt inferior in front of her talent.

He fell ill due to long-term malnutrition.

In math class, I learned about deficient numbers.

Recently, I've been feeling heavy-headed due to lack of sleep.