man child

/ˈmæn tʃaɪld/
noun
  1. An adult male who behaves in an immature or childish way.
    • His friends called him a man-child because he refused to get a job and still lived with his parents.
    • She was tired of dating a man-child who never helped with chores.
    • The movie is about a man-child who finally learns to take responsibility.
  2. A male child; a boy (used especially in literary or formal contexts).
    • In the story, the man-child grew up to become a great leader.
    • The prophecy spoke of a man-child who would bring peace.
    • The ancient poem tells of a man-child born to save the kingdom.
Antonyms
What does "man child" mean? | whatsthatwordmean | whatsthatwordmean