Pleasantly cool or refreshing; giving a clear, fresh impression (of air, appearance, voice, etc.).
涼やかな風が窓から入ってきた。
A refreshing breeze came in through the window.
彼女は涼やかな笑顔で挨拶した。
She greeted me with a cool/refreshing smile.
涼やかな声で朗読を始めた。
He/she began reading aloud in a clear, refreshing voice.
涼やかな色合いのワンピースを買った。
I bought a dress in cool/refreshing colors.