- 一反常态 yīfǎnchángtài uncharacteristica complete change from the normal state or usual behavior; entirely out of character
- 常态化 chángtàihuà normalizeto become the norm or a regular practice; to return to or establish a standard state of affairs
- 恢复常态 huīfùchángtài normalizeto return to normal
- 常态分布 chángtàifēnbù normal distributionnormal distribution (in statistics)
- 定常态 dìngchángtài steady statea condition or state of a system that remains unchanged over time
- 常态分班 chángtàifēnbān mixed-ability groupingThe practice of grouping students into classes of mixed ability (Taiwan usage).