凸でこ凹ぼこ

also: とつおう · だくぼく

で

こ

ぼ

こ

Common wordJLPTN2Freq.FrequencyTop 50,000

凸凹する · noun or participle which takes 'suru'

Meanings

noun, noun which may take the genitive case particle 'no', na-adjective, noun or participle which takes 'suru', intransitive verb

Describes physical surfaces that are not flat or smooth, with bumps and hollows. Also used as a する verb for becoming uneven.

noun, noun which may take the genitive case particle 'no', na-adjective

Only with reading でこぼこ

Abstract use for uneven distribution, imbalance, or disparity in amounts, quality, or conditions. Restricted to the reading でこぼこ.

〈場ば所しょ〉が凸でこ凹ぼこしているfor a surface or place to be bumpy/uneven
この道どう路ろは凸でこ凹ぼこしていて運うん転てんしにくい。
This road is bumpy and hard to drive on.
〈事こと〉に凸でこ凹ぼこがあるfor there to be inconsistency or disparity in something
月つきによって収しゅう入にゅうに凸でこ凹ぼこがある。
My income varies unevenly from month to month.
〈物もの〉の凸でこ凹ぼこをなくすto smooth out the unevenness of something
表ひょう面めんの凸でこ凹ぼこをなくすために磨みがいた。
I polished it to remove the surface unevenness.

凹おう凸とつ sense 1
凹凸 and 凸凹 both describe an uneven, bumpy surface, but 凹凸 sounds more formal or technical while 凸凹 is common in everyday speech.
格かく差さN1sense 2
格差 specifically refers to a gap or disparity, often economic or social, while 凸凹 more broadly describes any kind of uneven imbalance in amounts or quality.
ボコボコ
でこぼこ is the standard word for an uneven, bumpy surface, while ボコボコ is a more colloquial, emphatic mimetic word that can describe the same bumpiness plus sounds and beatings.
ギザギザN1
でこぼこ describes an uneven, bumpy surface, while ギザギザ describes a sharp, saw-toothed or notched edge pattern.

平たいらN3sense 1
平ら means flat or level, the direct opposite of 凸凹 when describing a physical surface with bumps and dips.
均きん等とうN1sense 2
均等 means equal or evenly distributed, contrasting with the abstract sense of 凸凹 as an uneven imbalance between amounts or conditions.

発はっ達たつ凸でこ凹ぼこ
neurodiversity; developmental differences; developmental irregularities
凸でこ凹ぼこコンビ
odd couple; mismatched pair

凸凹Usage42%
- でこぼこ
  Standard kanji spelling for the common reading でこぼこ. High priority.
- とつおう
  Rare on'yomi reading; mostly found in formal or technical contexts.
- だくぼく
  out-dated reading
  Obsolete kana usage; it is out-dated.
でこぼこUsage40%
Kana spelling is common in everyday writing, especially when the kanji are considered complex.
デコボコUsage18%
だくぼく
out-dated reading
とつおう

Compound of 凸 (convex) and 凹 (concave). The reading でこぼこ is a native Japanese mimetic-like formation, while とつおう is the Sino-Japanese reading.