Definitions

1. verb

to make something less fat or fatty; to reduce the fat content of something

“The new diet plan is designed to help people unfatten their bodies.”

2. verb

to remove excess fat from an animal, especially before slaughter

“The butcher will unfatten the pigs before sending them to market.”

3. transitive verb

to remove excess fat from an animal’s body

“The butchers unfattened the animal to prepare it for consumption.”