Difference between Immature and Boyish

IMMATURE vs BOYISH: NOUN

Characteristic of a lack of maturity
Lacking in development
(used of living things especially persons) in an early period of life or development or growth
(of birds) not yet having developed feathers
Not fully developed or mature; not ripe
Not fully grown or developed.
Marked by or suggesting a lack of normal maturity: : young.
Not yet mature
Premature; untimely; too early.
Not fully formed or developed, unripe.
Silly or childish in behavior.
Not mature; unripe; not arrived at perfection of full development; crude; unfinished

Befitting or characteristic of a young boy
Characteristic of or befitting a boy.
Resembling a boy in a manners or opinions; belonging to a boy; childish; trifling; puerile.
Like a boy.

Not ripe
Not fully developed or mature
Not mature or ripe; not complete in growth or development; hence, unfinished; not perfected: as, immature fruit; an immature youth; immature plans or counsels.
Synonyms Raw, green, crude, unfinished, undigested.
Coming before the natural time; premature; too early.

Synonyms
Belonging to a boy; pertaining to boyhood; in a disparaging sense, childish, trifling, puerile: as, “a boyish odd conceit,”

Unformed, Embryonic, Adolescent, Prepubescent, Underdeveloped, Pubescent, Jejune, Inexperienced, Puerile, Unsophisticated, Babyish, Callow, Naive, Childish, Infantile

Pudgy, Childlike, Wiry, Lanky, Cherubic, Gawky, Bespectacled, Impish, Youthful, Girlish, Childish, Immature, Boylike, Young, Schoolboyish

Unformed, Embryonic, Adolescent, Prepubescent, Underdeveloped, Pubescent, Jejune, Inexperienced, Puerile, Unsophisticated, Babyish, Callow, Naive, Childish, Infantile

Pudgy, Childlike, Wiry, Lanky, Cherubic, Gawky, Bespectacled, Impish, Youthful, Girlish, Childish, Immature, Boylike, Young, Schoolboyish

Some men are too immature to do that.
We specialize in treating and managing immature apices.
Some of these children are viewed as immature.
These men are usually insecure and emotionally immature.
In addition, the immature denial and immature projection categories of the DMM show promise in the assessment of personality pathology.
Control immature embryos without hygromycin B, immature embryos produced compact and embryogenic calli and started turning green.
Callus induction occurred from the somatic cells of ovary wall, immature and mature embryos, immature endosperm, stem nodes, and seedlings.
The CBS announcers called the play immature and explained that Palmer has some immature tendencies.
He noted that the tissue was characterised by disorganized, immature collagen formation with immature fibroblastic and vascular elements.
Preferably, tissue utilized in initiating callus is immature tissue such as immature embryos, immature inflorescences, and the basal portion of young leaves.