infantile - Master This Word
Master this word with our 5-step learning method – Learn English in English
infantile Word Meanings
- relating to infants, childish or immature
- characteristic of a young child.
- lacking maturity or sophistication.
infantile Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
infantile Phonetic & Pronunciation
UK
/ˈɪn.fən.taɪl/
US
/ˈɪn.fən.taɪl/
infantile Word Etymology
in- (not) + fant- (to speak, cry) + -ile (related to) → Latin → Old French → English. Visualize a baby who cannot speak, dependent on cries.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
Infantile is an adjective that covers both senses: relating to infants and describing behavior or ideas that are childish, immature, or lacking maturity. Historically, it appears in medical or clinical contexts to discuss conditions of infancy, but in everyday use it often carries a negative nuance when referring to adults or adult behavior. You might hear about infantile humor, infantile dreams, or infantile reactions, all implying that something is more suited to a baby than to an adult. Learners should distinguish it from innocent or adorable, which are neutral, and beware that tone is seldom flattering when applied to people.
Usage Reminders
- Note the word has a negative tone when describing adults.
- Differentiate infantile from childish by focusing on age and maturity.
- Use in formal, literary, or medical contexts rather than casual chat.
- Avoid praising or describing people as infantile.
- Pair with concrete examples to show context.
- Remember etymology hints at the infant cries to help memory.
Common Misconceptions
- It means 'infant' or 'baby' in all uses.
- It only refers to infants, never adults.
- It's a neutral, warm term.
- It's commonly used in casual conversation.
- It's interchangeable with childish.
Thinking Differences
English speakers often reserve infantile for a negative judgment about adults or adult behavior; learners frequently mix it with childish, forgetting the age-focus and formal nuance. Practice with adult examples to avoid sounding pompous.
Learning Tips
- Note the word has a negative tone when describing adults.
- Differentiate infantile from childish by focusing on age and maturity.
- Use in formal, literary, or medical contexts rather than casual chat.
- Avoid praising or describing people as infantile.
- Pair with concrete examples to show context.
- Remember etymology hints at the infant cries to help memory.
5-Step Learning Method - Learn English in English
Step 2: Usage
In which sentence is 'infantile' used correctly?
A.The professor's lecture was infantile.
B.The sky turned infantile during the storm.
C.The athlete ran with an infantile speed.
D.The company CEO made an infantile decision.
Step 3: Similar Words
Which word is an antonym of 'infantile'?
A.Young
B.Silly
C.Playful
D.Mature
Step 4: Opposite Words
In what real-life context would you describe someone's behavior as 'infantile'?
A.In a professional meeting
B.While taking a test
C.At a birthday party
D.During a job interview
Step 5: Mastery
Reflect on a situation where you witnessed infantile behavior or discuss the impact of such behavior.
A.Debate
B.Personal reflection
C.Presentation
D.Casual conversation
Want to practice more words?
Download LexiTalk app for personalized learning experience
Download App