ゴツゴツ

noun or participle which takes 'suru', adverb, noun which may take the genitive case particle 'no', noun

rugged; angular; gnarled; bony

Describes a hard, uneven, or rough surface or shape, often with protruding parts. Can refer to rocks, hands, faces, or objects. Mimetic word.

• この岩いわはゴツゴツしていて登のぼりにくい。

  This rock is rugged and hard to climb.

• 彼かれの手てはゴツゴツしていて、力ちから仕し事ごとをしているのがわかる。

  His hands are rough and bony, showing he does manual labor.