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
People with leukemia often have a high number of immature white blood cells called myeloblast, which are not usually present in the blood.
—
Doru Paul, Health, 10 Jan. 2025
These immature cells can develop into different types of blood cells, including white blood cells (WBCs), central to immune function.8
Getting sufficient and consistent sleep can help make your body more resistant to disease and infection.
—Mark Gurarie, Verywell Health, 9 Jan. 2025
If desired, scatter some microgreens (tiny immature greens) on top of salad.
—Cathy Thomas, Orange County Register, 1 Jan. 2025
Building on the work of Dr. Shinya Yamanaka of Japan, who discovered that specialized cells could be reprogrammed back to immature stem cells, Watt and his collaborators have taken this work several steps further.
—Dr. Marc Siegel Fox News, Fox News, 24 Dec. 2024
See all Example Sentences for immature 
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Doru Paul, Health, 10 Jan. 2025
These immature cells can develop into different types of blood cells, including white blood cells (WBCs), central to immune function.8
Getting sufficient and consistent sleep can help make your body more resistant to disease and infection.
—Mark Gurarie, Verywell Health, 9 Jan. 2025
If desired, scatter some microgreens (tiny immature greens) on top of salad.
—Cathy Thomas, Orange County Register, 1 Jan. 2025
Building on the work of Dr. Shinya Yamanaka of Japan, who discovered that specialized cells could be reprogrammed back to immature stem cells, Watt and his collaborators have taken this work several steps further.
—Dr. Marc Siegel Fox News, Fox News, 24 Dec. 2024
See all Example Sentences for immature
Dictionary Entries Near immature
Cite this Entry
“Immature.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immature. Accessed 18 Jan. 2025.
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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