- 大后天 dàhòutiān in three daysthree days from now
- 后天性 hòutiānxìng acquiredacquired (characteristic etc)
- 先天下之忧而忧，后天下之乐而乐 xiāntiānxiàzhīyōu'éryōu, hòutiānxiàzhīlè'érlè selfless devotionto be the first to worry about affairs of state, and the last to enjoy oneself (quotation from the essay "On Yueyang Tower" by Song writer Fan Zhongyan)
- 先天不足，后天失调 xiāntiānbùzú, hòutiānshītiáo flawed foundationto be problematic from the start and worsen over time due to unfavorable conditions or mismanagement
- 先天与后天 xiāntiānyǔhòutiān nature vs nurturenature versus nurture
