1. Befitting or characteristic of a young boy
   "schoolboyish pranks"
   - boyish, boylike

See also: immature, young

• radiator
• radiator cap
• radiator grille
• radiator hose
• radical
• radical cell
• radical chic
• radical hysterectomy
• radical mastectomy
• radical sign
• radicalise
• radicalism
• radicalize
• radically
• radicchio
• radicle
• radicular
• radiculitis
• Radiigera
• Radiigera fuscogleba
• radio
• radio aerial
• radio announcer
• radio antenna
• radio astronomy