Glossy, lustrous, or elegant in appearance—often used for hair, skin, clothing, etc., conveying sleekness or sensual shine.
彼女は艶やかな黒髪を風になびかせながら歩いた。
She walked with her glossy black hair flowing in the wind.
着物の柄と色合いが艶やかで、式場でもひときわ目立っていた。
The kimono's pattern and colors were lustrous and stood out at the venue.
このワックスを使うと髪が艶やかに仕上がる。
Using this wax makes hair finish with a glossy sheen.