Dictionary and Thesaurus

Definition of Infantile

• (a.) Of or pertaining to infancy, or to an infant; similar to, or characteristic of, an infant; childish; as, infantile behavior.

Synonyms of Infantile

• Puerile
• Childish
• Imbecile.

Antonyms of Infantile

• Manly
• Mature
• Vigorous
• Robust.

Homophones of Infantile