Difference between Immature and Youthful

IMMATURE vs YOUTHFUL: NOUN

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

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

In physical geography, exhibiting an early stage of the geographical cycle; young.
Possessing or characterized by youth; not yet aged; not yet arrived at mature years; being in the early stage of life; young; juvenile.
Pertaining or belonging or suitable to the early part of life: as, youthful days; youthful age.
Fresh and vigorous, as in youth.
Early in time.
=Syn.1-3. Youthful, Juvenile, Boyish, Puerile. Youthful is generally used in a good sense: as, youthful looks or sports; juvenile indifferently, but if in a bad sense not strongly so: as, the poem was a rather juvenile performance; boyish rather more often, but not necessarily, in some contempt: as, a boyish manner; boyish enthusiasm; puerile always in marked contempt, as a synonym for silly.
Suggestive of youth
Vigorous and fresh

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

Kid, Minor, Adolescents, Junior, Fledgling, Teenager, Youths, Dynamic, Adolescent, Teenage, Youth, Younger, Vernal, Immature, Young

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

Kid, Minor, Adolescents, Junior, Fledgling, Teenager, Youths, Dynamic, Adolescent, Teenage, Youth, Younger, Vernal, Immature, Young

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.