austerity的形容词是austere,副词是austerely。austerity没有动词形式。
1. austere adj.
(1)simple and plain; without any decorations朴素的,简陋的,无华饰的的
(2)(of a person人)strict and serious and appearance and behavior严肃的,严厉的
(3)allowing nothing that gives pleasure; not comfortable苦行的,禁欲的
2. austerely adv.严格的,简朴的。