Definitions

1. adjective

having a body condition where the calorie intake is insufficient to meet the body’s energy needs

“Many children in developing countries suffer from being underfed and malnourished.”

2. noun

a person or animal that is underfed

“The underfed stray dog wandered the streets in search of food.”

3. verb

to deprive someone or something of sufficient food

“The famine had underfed the population, leading to widespread hunger and starvation.”