painfulness

/ˈpeɪnfəlnəs/

the quality of being painful. “she feared the painfulness of childbirth” synonyms: distressingness.

Sometimes you have to suffer the painfulness.
有时侯，你必会忍受一些痛苦。

“ -ness” ⌜ 表示状态或质量的性质 - indicating the state or quality of ~ ⌟

单词造句:

来源于painful/ˈpeɪnf(ə)l/adj. 疼痛的；痛苦的；令人不快的