Stylish
noun, な adjective
The kanji and the word are exactly the same. That means they share meanings as well.
This word uses the kun'yomi reading, which you haven't learned yet, so here's a mnemonic to help you:
You are stylish. Since you're stylish, you avoid icky (いき) clothing at all costs. You won't even be seen in the same room, that's how stylish you are.
自分で粋な会話をしてるって思ってるところがムカツクんだよね。
He believes that he carries on refined conversations, but they’re actually irritating.