Intermediate (B1)
IPA: /ɪnˈfæntɪlɪti/
KK: /ɪnˈfæntɪlɪti/
Definition
The state or quality of being childish or immature.
Example
His infantility was evident in the way he threw a tantrum over a small issue.
Conversation

Have you noticed how some adults show signs of infantility?

Yeah, it can be surprising, especially when they're supposed to be mature.

I think it often comes out in how they handle stress or conflict.

Definitely! It's like they revert to childish behavior instead of addressing issues.
Synonyms & Antonyms
Synonyms
childishness
naivety
immaturity
Antonyms
maturity
sophistication
adulthood
Root Explanation
Infantility is formed from "infans" (from Latin, meaning unable to speak or speechless) and the suffix "-ity" (meaning the state or condition of). The word refers to the state or condition of being an infant or childlike.
Memory Tip
Think of 'infans' meaning unable to speak, which helps you remember that 'infantility' refers to the state of being like an infant.
Visually Confused Words
infertility
inutility
infrangibility
influentiality
inability