noun

immaturity

im-uh-CHOOR-uh-tee/ˌɪməˈtʃʊrəti/

The condition of incomplete development.

His emotional immaturity makes it hard for him to accept criticism.

An older adult throws a visibly childish tantrum over a lost chess game, sweeping away the pieces while his composed opponent recoils.

Etymology

imLatinnot

+maturLatinripe, timely

+ityLatinstate or quality

Being “unripe” supplies the image of development not yet complete. Applied to judgment and behavior, immaturity names a lack of the emotional or mental development expected of someone.

In context

Mahatma Das68:43

And they'll always blame in a sign of, a sign of emotional immaturity is a sign you need healing as you always blame the other person.

Spiritual Bypassing - Part 1 | Mahatma Das

More examples

The baby's physical immaturity means she needs extra care.
Blaming others for every mistake shows immaturity.
The technology's immaturity limits its use in hospitals.

Forms

immature adjective — Not fully grown or emotionally developed.

maturity noun — The state of being fully developed.

Similar words

underdevelopment: Emphasizes insufficient growth or progress rather than incomplete maturation.
childishness: Refers specifically to behavior considered inappropriate for an adult.