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
This portion of the bone marrow comprises fat cells, immature bone, and cartilage cells that will eventually help remodel, renew, and strengthen your bones.
—
Gagandeep Brar, Verywell Health, 14 Feb. 2025
Both young actors are superb, each zigzagging along that fine line between immature posturing and actual, exhilarating self-realization, evoking that transitional stage through which girls like them can often seem at least three ages at once.
—Guy Lodge, Variety, 14 Feb. 2025
These clowns dressed as presidents appear immature and narcissistic.
—Nancy Tartaglione, Deadline, 9 Feb. 2025
Harvesting immature follicles requires only one or two days of hormonal injections, or skips the process altogether.
—Kristen V. Brown, The Atlantic, 27 Jan. 2025
See All Example Sentences for immature
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Gagandeep Brar, Verywell Health, 14 Feb. 2025
Both young actors are superb, each zigzagging along that fine line between immature posturing and actual, exhilarating self-realization, evoking that transitional stage through which girls like them can often seem at least three ages at once.
—Guy Lodge, Variety, 14 Feb. 2025
These clowns dressed as presidents appear immature and narcissistic.
—Nancy Tartaglione, Deadline, 9 Feb. 2025
Harvesting immature follicles requires only one or two days of hormonal injections, or skips the process altogether.
—Kristen V. Brown, The Atlantic, 27 Jan. 2025
See All Example Sentences for immature
Cite this Entry
“Immature.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/immature. Accessed 22 Apr. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share