What does 滑らか mean?
滑らか is a Japanese noun meaning “smoothness, glassiness” in English. It can also be translated as “smooth (of an action, proceedings, etc.), continuously differentiable” depending on context. It is written as 滑らか in kanji, なめらか in hiragana, and nameraka in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
海は穏やかに、そしてなめらかに見える。
The sea looks calm and smooth.