hobbledehoy

/ˈhɑbəldiˌhɔɪ/
noun
  1. An awkward, clumsy, or immature young person, especially a teenage boy.
    • The novel's main character is a hobbledehoy who slowly grows into a confident young man.
    • She laughed at the hobbledehoy's attempts to impress her with his silly jokes.
    • My little brother is such a hobbledehoy, always tripping over his own feet.
Antonyms