immaturity
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/ˌɪməˈtʃʊrəti/
🇬🇧
/ˌɪməˈtjʊərəti/
A lack of maturity or wisdom, often seen in the behavior of younger individuals.
His immaturity was evident when he threw a tantrum during the meeting.
The state of not being fully developed or grown, often in reference to physical or mental growth.
The doctor was concerned about the child's growth and the immaturity of his organs.