1) Her new haircut gave her a trendy, teenish look.

2) The movie had a teenish vibe with its youthful cast and modern soundtrack.

3) She still had a few teenish tendencies, like doodling in her notebook during class.

4) The bright colors and fun patterns made the room feel very teenish.

5) His behavior was a bit teenish as he rebelled against authority.

6) The book was written in a teenish style, making it relatable for young readers.

7) The young couple's love was sweet and teenish, filled with innocence and excitement.

8) The store sold trendy clothes that catered to a teenish demographic.

9) His taste in music was very teenish, preferring pop and hip-hop hits.

10) The party had a fun, teenish atmosphere with lots of dancing and laughter.