The barren desert was vegetationless.

Many vegetarianists believe in the ethical treatment of animals.

She follows a vegetarianistic diet.

She is a dedicated vegetarianist and promotes a plant-based lifestyle.

She is a vegetarianist and only eats plant-based foods.

She vegetablized her diet by eating more greens and cutting out processed foods.

She vegetablizes her diet by eating a variety of vegetables.

She is vegetablizing her diet by incorporating more fruits and vegetables.

I am trying to vegetablize my diet by eating more greens and less meat.