凹凸 おうとつ Meanings Noun unevenness; bumpiness; roughness; ruggedness imbalance; inequality; unevenness; disparity Kanji 凹 concave. Read as オウ. 凸 convex. Read as トツ. Common phrases 凹凸がある 凹凸をつける 細かい凹凸 細かな凹凸 凹凸を作る 凹凸ができる Jinuma: Japanese Dictionary · Word lists