- Adolescent
- Adolescent makes mum irate
- Childish
- Green
- Juvenile
- Not fully developed
- Puerile
- Childish
- Julie and Nev are crazy, youthful and immature
- Youthful, immature
- Young; youthful; as, a juvenile appearance.
- Of or pertaining to youth; as, juvenile sports.
- A young person or youth; -- used sportively or
familiarly.
- Banal
- Childish
- Cliché
- Cliched
- Commonplace
- Commonplace, hackneyed
- Contritely admitted being banal
- Absurd
- Annie confused and foolish
- Batting with an English opener is foolish
- Boring and unimaginative to go in a north-east direction
- Boring and unimaginative to go in a northeast direction
- Childish
- Corny
- Childish
- Exhibiting silliness
- Silly and childish
- Boyish; childish; trifling; silly.