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

1. Like a boy
   - boyishly

See also: immature, young

• thyristor
• thyrocalcitonin
• thyroglobulin
• thyroid
• thyroid cartilage
• thyroid gland
• thyroid hormone
• thyroid vein
• thyroid-stimulating hormone
• thyroidal
• thyroidectomy
• thyroiditis
• thyromegaly
• thyronine
• thyroprotein
• thyrotoxic
• thyrotoxicosis
• thyrotrophic hormone
• thyrotrophin
• thyrotropic hormone
• thyrotropin
• packet
• packet boat
• packet switching
• packhorse