New
い adjective
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of new? It's new.
あたらしい
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you:
Your family buys you a new Atari! You're so excited! But wait... what's this? This is no Atari. This is an Atara... a knockoff video game system :(
新しいえんぴつですね。
This pencil is new, isn’t it?
じゃあ、あの新しいスタバでね！
I'll see you at the new Starbucks!
あの男、バンジージャンプするのに私の新しいスカーフを使うなんて、信じられない！
I can’t believe he used my new scarf to bungee jump!