flexitarian       
noun [ C ] uk/ˌfleks.ɪˈteə.ri.ən/ us/ˌfleks.əˈter.i.ən/
 (通常只吃蔬菜,但偶尔也会吃肉食的)弹性素食者,自由素食者
a person who eats mainly vegetarian food but eats meat occasionally
  As a flexitarian, I was interested in the vegetarian options on the menu.
 The study found that flexitarians had a lower risk of diabetes compared with people who ate meat every day.
 - More examples
 - What are your general thoughts on becoming a flexitarian?
 - Most flexitarians just prefer a diet that is low in animal foods.