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

Her infantileness undermined the team's credibility during the negotiations.

His infantility during meetings undermined his credibility with the team.

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

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

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

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

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