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

• Sb
• SBA
• SbE
• SbW
• Sc
• scab
• scabbard
• scabbed
• scabbiness
• scabby
• scabicide
• scabies
• scabiosa
• Scabiosa arvensis
• Scabiosa atropurpurea
• scabious
• scablands
• scabrous
• scad
• scads
• scaffold
• scaffolding
• scag
• scagliola
• scala