- 惊魂未定 jīnghúnwèidìng still shakenOne's soul or spirit has not yet settled down after a shock; to remain badly shaken or startled after a frightening experience.
- 未定之天 wèidìngzhītiān uncertaintySomething that is not yet settled or decided; an unknown factor where the final outcome is still unpredictable.
- 未定稿 wèidìnggǎo draft manuscripta piece of writing or manuscript that has not yet been revised or finalized
- 炼之未定 liànzhīwèidìng to ponder without decidingto spend a long time thinking about something while remaining unable to reach a decision