- 凹凸不平 āotūbùpíng uneven(idiom) uneven (surface); bumpy (road)
- 凹凸性 āotūxìng concavity(math.) concavity
- 凹凸有致 āotūyǒuzhì curvaceous
- 凹凸轧花 āotūyàhuā embossing
- 凹凸形 āotūxíng crenelatedcrenelated; corrugated
- 凹凸印刷 āotūyìnshuā embossinga printing process that creates raised or recessed relief images and designs in paper and other materials