immature
adjective
im·ma·ture
ˌi-mə-ˈchu̇r 
-ˈtu̇r
-ˈtu̇r
-ˈtyu̇r
1
a
: exhibiting less than an expected degree of maturity
emotionally immature adults
b
: lacking complete growth, differentiation, or development
immature fruits
a sexually immature bird
c
: having the potential capacity to attain a definitive form or state : crude, unfinished
a vigorous but immature school of art
2
archaic
: premature
Examples of immature in a Sentence
The flock included both adult and immature birds.
His teachers have complained about his immature behavior.
Recent Examples on the Web
Tennis is, after all, not just their connection to each other but their lives, their collective obsession, the thing fueling their fame, fortune and immature follies.
—
David Fear, Rolling Stone, 26 Apr. 2024
Even Stevens was never afraid to go all out for its constant string of gags and jokes, led by Shia LaBeouf as the immature prankster Louis Stevens.
—Ew Staff, EW.com, 15 Apr. 2024
The discussion that was unleashed based on the list [of essential rappers in Spanish published by Billboard] seemed immature on the part of some of my colleagues.
—Isabela Raygoza, Billboard, 23 Feb. 2024
Liking and sharing posts that are offensive, insensitive and hurtful was immature and disrespectful which was never my intent.
—Greg Cote, Miami Herald, 4 Apr. 2024
Animals with weakened or immature immune systems, like the goat kids in this case, are at higher risk of contracting disease, the board said.
—Michael Dorgan, Fox News, 20 Mar. 2024
First-year males may show a combination of immature and adult plumage.
—Taylor Piephoff, Charlotte Observer, 31 Jan. 2024
Cal, like many newborns, had an immature liver, leading to jaundice.
—Karen Weintraub, USA TODAY, 17 Mar. 2024
Their game-changing discoveries will result in a massive cover story in a glitzy magazine, the many years of their Ph.D. research solving the mystery of colony collapse disorder — when worker bees exit a honey bee colony, leaving the queen with food and nurse bees to care for the immature bees.
—David John Chávez, The Mercury News, 13 Mar. 2024
David Fear, Rolling Stone, 26 Apr. 2024
Even Stevens was never afraid to go all out for its constant string of gags and jokes, led by Shia LaBeouf as the immature prankster Louis Stevens.
—Ew Staff, EW.com, 15 Apr. 2024
The discussion that was unleashed based on the list [of essential rappers in Spanish published by Billboard] seemed immature on the part of some of my colleagues.
—Isabela Raygoza, Billboard, 23 Feb. 2024
Liking and sharing posts that are offensive, insensitive and hurtful was immature and disrespectful which was never my intent.
—Greg Cote, Miami Herald, 4 Apr. 2024
Animals with weakened or immature immune systems, like the goat kids in this case, are at higher risk of contracting disease, the board said.
—Michael Dorgan, Fox News, 20 Mar. 2024
First-year males may show a combination of immature and adult plumage.
—Taylor Piephoff, Charlotte Observer, 31 Jan. 2024
Cal, like many newborns, had an immature liver, leading to jaundice.
—Karen Weintraub, USA TODAY, 17 Mar. 2024
Their game-changing discoveries will result in a massive cover story in a glitzy magazine, the many years of their Ph.D. research solving the mystery of colony collapse disorder — when worker bees exit a honey bee colony, leaving the queen with food and nurse bees to care for the immature bees.
—David John Chávez, The Mercury News, 13 Mar. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'immature.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near immature
Cite this Entry
“Immature.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immature. Accessed 2 May. 2024.
Copy CitationKids Definition
immature
adjective
im·ma·ture
ˌim-ə-ˈt(y)u̇(ə)r
2
: showing less than an expected degree of maturity
immature behavior
immaturely
adverb
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