凹おう凸とつ

お

う

と

つ

Common wordFreq.FrequencyTop 50,000

Meanings

1

noun

unevenness; bumpiness; roughness

Physical unevenness of a surface, with both raised and sunken parts. Common in patterns such as 凹凸がある, 凹凸が多い, and 表面の凹凸.

この道みちは凹おう凸とつが多おおくて歩あるきにくい。
This road is very uneven and hard to walk on.

表ひょう面めんの凹おう凸とつをなくしてから塗と装そうする。

Paint it after removing the unevenness from the surface.

2

noun

imbalance; unevenness; disparity

Figurative use for uneven distribution, imbalance, or disparity in degree, quality, treatment, ability, and similar matters. Often a little more written or analytical than everyday ばらつき.

自じ治ち体たいによって支し援えんの手て厚あつさに凹おう凸とつがある。
The level of support varies unevenly from one municipality to another.
各かく部ぶ署しょの負ふ担たんに凹おう凸とつが出でている。
An imbalance has appeared in the workloads of the different departments.

Kanji

凹concave, hollow, sunken
凸convex, beetle brow, uneven

Similar words

凸でこ凹ぼこ
A more everyday word for physical bumpiness; it can also be used figuratively, but 凹凸 is more formal and technical-looking.
起き伏ふく
Often describes rises and falls in terrain, emotion, or a storyline; 凹凸 focuses more on surface irregularities or uneven distribution.
格かく差さ
Means a gap or disparity, especially social or economic; 凹凸 can mean disparity but has a broader sense of unevenness or imbalance.

Written forms

凹おう凸とつUsage98%
Standard kanji spelling; the two characters visually match the idea of depressions and protrusions.
おうとつUsage2%

Etymology

A Sino-Japanese compound of 凹, associated with being concave or sunken, and 凸, associated with being convex or protruding. This component explanation matches the modern written form; no further historical derivation is asserted here.