girlish

/ˈɡɜrlɪʃ/
adjective
  1. Characteristic of or suitable for a young girl; having qualities traditionally associated with girls, such as innocence, playfulness, or a youthful appearance.
    • He kept a girlish enthusiasm for collecting stickers well into his teens.
    • Her girlish laughter filled the room as she played with the puppy.
    • The dress had a girlish charm with its floral pattern and puffy sleeves.
Antonyms
What does "girlish" mean? | whatsthatwordmean | whatsthatwordmean