- 无用功 wúyònggōng useless effortUseless work; unproductive labor; a waste of effort.
- 无用武之地 wúyòngwǔzhīdì no room to show one's talentsno place to use one's strength or military force; a metaphor for having no opportunity or scope to display one's abilities or ambitions
- 英雄无用武之地 yīngxióngwúyòngwǔzhīdì no place to display one's talentsA person with courage and ability who has no opportunity to put their skills to use; to have no scope to exercise one's talents.
- 无用之树 wúyòngzhīshù useless personA person who is perceived as having no talent or use; originally from the Daoist text [[逍遥游|逍遙遊|xiao1 yao2 you2]] by Zhuangzi.
- 老朽无用 lǎoxiǔwúyòng old and uselessto be old, decayed, and of no practical use to anyone
