How is the kanji 凹 read?

オウ (Ou); くぼ.む (Kubomu); へこ.む (Hekomu); ぼこ (Boko)

凹concave

凹

Kubomuくぼむ

concave

Ouおう

Examples

凹凸おうとつunevenness

凸凹でこぼこunevenness

凹 (Kubomu) is a JLPT N1 kanji meaning “concave, hollow, sunken”. It is taught in secondary school and written in 5 strokes.