His infantilism, an emotional dependency on being treated like an infant, made it hard for him to maintain equal adult relationships.

The pediatrician explained the infantile reflexes that every newborn displays in the first few months.

Don't infantilize her by explaining every step as if she couldn't understand.

Despite his years of experience, his infantilities occasionally undermined the team's confidence.

The psychologist discussed how certain cultural infantilisms can affect adult relationships.

The specialist explained that infantile dementia typically involves a sudden regression in a child's social and communication skills.

The introduction of widespread vaccination nearly eradicated infantile paralysis in many countries.

The neurologist explained that the child's symptoms were consistent with progressive infantile poliodystrophy.