凹凸 āo tū 🔊 concave or convex + Review this word Meanings āo tū concave or convexbumps and holesuneven (surface)rugged Its characters 凹āoconcaveHSK 7–9凸tūto stick outHSK 7–9 Words with 凹凸 凹凸不平 āo tū bù píng uneven (surface); bumpy (road) 凹凸形 āo tū xíng crenelated; corrugated 凹凸性 āo tū xìng concavity 凹凸印刷 āo tū yìn shuā embossing 凹凸有致 āo tū yǒu zhì curvaceous 凹凸轧花 āo tū yà huā embossing