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凹 means 'concave'

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Strokes : 5    Frequency: 2669   JLPT: N1    Usefulness: 5    Study set: 5-48    Grade: 8   Intermediate lesson: -    Beginner lesson: -   Begins 25 words   Used in 33 words   Used in 3 names   Component in 1 kanji (0 Jōyō)
Jōyō (常用)
Common readings
On
   オウ
Additional readings
Kun    へこむ to be dented   ぼこ   くぼむ
Notes
凸凹
is read with non-standard readings for both kanji as でこぼこ.
A Joy o' Kanji essay is available for 凹 - click the badge to download
English speakers rarely refer to concavity, but the Japanese use 凹 in an astonishing variety of ways. They need it when writing about everything from dimpled golf balls, potholes, and cupped hands to inconsistent income and the moon's irregular surface. With 凹, one can also mention cognitive and psychological states. And this kanji is crucial in discussions of both topography and flat abs!
View in the essay collection    All Joy o' Kanji essays  
The essay is also included in the following Thematic Bundles
14
Ups and Downs
凹 丘 凸 岡
This essay collection about hilly topography focuses in part on the physical world: bumpy surfaces, volcanic cones, lens curvature, embossed paper, and especially flat abs! But such topics are also rich in figurative possibilities. One essay first examines objects that stand apart from the rest, then demonstrates how being separated from the main action affords a clear vantage point. That essay also touches on unrequited love. Another illuminates how it feels to be overwhelmed and slightly depressed. A third addresses the ups and downs of life. Uneven ground proves to be fertile!
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Most useful words by reading
In the most useful 10,000 words in Japanese, 凹 is used 1 time, read 1 way.
Across all words in Japanese, 凹 is used 31 times, read 4 ways.
Showing:
オウ : 16 words FIND ALL
お う と つ 0
unevenness; roughness; ruggedness
(click the word for examples and links)
ぼこ : 3 words FIND ALL
で こ ぼ こ 0
noun, 'no' adjective, 'na' adjective, 'suru' verb, intransitive verb
1. unevenness; roughness; ruggedness; bumpiness
2. inequality; imbalance; unevenness; difference  (this meaning is restricted to reading でこぼこ)
(click the word to view an additional 2 readings and 2 forms, examples and links)
くぼむ : 8 words FIND ALL
noun
sunken (deep-set) eyes
(click the word for examples and links)
へこむ : 4 words FIND ALL
へ こ む 0 へ こ む 3
'mu' godan verb, intransitive verb
1. to be dented; to be indented; to yield to; to give; to sink; to collapse; to cave in
2. to be overwhelmed; to feel down; to be forced to yield; to be daunted; to be snubbed
(click the word for examples and links)
An additional 2 less common words include 凹 but the reading has not yet been categorized.
Quick links
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More information
Wiktionary ⇗ | Unicode.org ⇗ | Google Japan ⇗ | Hanziyuan etymology ⇗
Additional data
Henshall: 1032  Joy o' Kanji : 1032  Key to Kanji: - 

Cascading kanji view

凹
オウ    concave   
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