- 少年老成 shàoniánlǎochéng matureacting with the wisdom, steadiness, or experience of an older person despite being young
- 老成持重 lǎochéngchízhòng experiencedmature and experienced, acting with caution and prudence
- 波澜老成 bōlánlǎochéng masterlysplendid and powerful in style, especially of writing or storytelling; majestic and mature