なめ
滑
　
ら
　
か

adjectival noun or quasi-adjective

  1. smooth (of a surface), glassy, velvety, soft.
  2. smooth (of an action, proceedings, etc.), fluent (speech), fluid, trouble-free.
  3. Mathematics.continuously differentiable.

Variations

Pronunciation Kanji Kana Is Common
なめ
滑
　
ら
　
か
 滑らか なめらか ✔
すべ
滑
　
ら
　
か
 滑らか すべらか
なめら
滑
　
か
 滑か なめらか
すべら
滑
　
か
 滑か すべらか

Contained Kanji Breakdown

slippery, slide, slip
すべ.る　カツ　コツ (Late Jr. High, N1)
water, water radical (no. 85)
さんずい
skeleton, bone, remains
ほね　コツ (6th, N2)
cut flesh from bones, (剮 variant)
カ　ケ　わ.ける
mouth
くち　コウ　ク (1st, N4)
upside-down box radical (no. 13)
キョウ　ケイ (Kentei 1)
month, moon
つき　ゲツ　ガツ (1st, N5)