1. An abnormal condition in which an older child or adult retains infantile characteristics 
2. Infantile behaviour in mature persons

Derived forms: infantilisms

Type of: abnormalcy [US], abnormality, misbehavior [US], misbehaviour [Brit, Cdn], misdeed

Encyclopedia: Infantilism

• brachycephaly
• Brachychiton
• Brachychiton acerifolius
• Brachychiton australis
• Brachychiton populneus
• Brachychiton rupestris
• Brachycome
• Brachycome Iberidifolia
• brachycranial
• brachycranic
• brachydactylia
• brachydactylic
• brachydactylous
• brachydactyly
• brachypterous
• Brachystegia
• Brachystegia speciformis
• brachytherapy
• Brachyura
• brachyuran
• brachyurous
• bracing
• bracken
• bracket
• bracket creep