Difference between Immature and Little

IMMATURE vs LITTLE: NOUN

Not mature; unripe; not arrived at perfection of full development; crude; unfinished
Premature; untimely; too early.
Not fully formed or developed, unripe.
Silly or childish in behavior.
Not yet mature
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.
Characteristic of a lack of maturity

Small in quantity or extent: : small.
Small in size.
(informal terms) small and of little importance
Of short duration or distance
Limited or below average in number or quantity or magnitude or extent
Small in a way that arouses feelings (of tenderness or its opposite depending on the context)
Not fully grown
Lowercase
(of a voice) faint
Unimportant; trivial.
Short in extent or duration; brief.
Insignificant, trivial.
Young children.
The quahog, or round clam.
The offices of prime, tierce, sext, and nones. Vespers and compline are sometimes included.
A public examination about the middle of the course, which is less strict and important than the final one; -- called also smalls. Cf. Great go, under Great.
The fourth and smallest finger of the hand.
An Englishman opposed to territorial expansion of the British Empire. See Antiimperialism, above.
See Chief hare.
Small in extent of views or sympathies; narrow; shallow; contracted; mean; illiberal; ungenerous.
Small in force or efficiency; not strong; weak; slight; inconsiderable
Small in dignity, power, or importance; not great; insignificant; contemptible.
Small in quantity or amount; not much
Short in duration; brief.
Narrow; petty.
Having scant power or influence; of minor status.
Being at an early stage of growth; young.
Younger or youngest. Used especially of a sibling.
Small in size or extent; not big; diminutive; -- opposed to big or large

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

To become little or less.
To make less. Compare belittle.
In a small quantity or degree; not much; slightly.
Not large or much.
Not large in number; having few constituent, members or parts: as, a little army or fleet; a little city.
Not much; of small amount, quantity, or degree; restricted; limited: as, a little food or drink; little joy or happiness; little influence.
Not of great extent or duration; not long; short in space or time; brief: as, a little way or distance; a little while.
Not great; small in consideration, dignity, consequence, etc.; petty; inconsiderable; insignificant: as, a little office; little affairs; a little accident.
Hence— Petty in character; mean; narrow; wanting breadth or largeness: as, a little soul or mind.
Synonyms Minute, tiny.
And Scanty, slender, moderate.
Insignificant, contemptible, weak. See littleness.
Low in stature
Low in stature; not tall; describing something or someone with a stature less than normal
(quantifier used with mass nouns) small in quantity or degree; not much or almost none or (with `a') at least some
(informal) small and of little importance
(of children and animals) young, immature
Not tall
(idiom) (little by little) By small degrees or increments; gradually.
(idiom) (a little) Somewhat; a bit.

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

Miniscule, Puny, Smaller, Minuscule, Mingy, Teeny, Small, Teensy, Tiny, Dinky, Wee, Piddling, Weensy, Slight, Bitty

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

Miniscule, Puny, Smaller, Minuscule, Mingy, Teeny, Small, Teensy, Tiny, Dinky, Wee, Piddling, Weensy, Slight, Bitty

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.

Needing something a little more specific, Angela Quarles researched beat sheets and developed one that is a little more formal.
It can be a little too loud and a little too crowded so best to enjoy not at peak times.
Little by little, reality came back to him, the ordinary things that now would always be just ordinary things.
However, we have had roosters wait until a little later, and begin a little sooner, too.
Made with sweet little ears, a sweet little expression, and those fun tassels.
Then, add some text pages and create a little story book that your little one will love.
Stick this little loop near the back of your shoe using very little corn syrup.
So, this one os perfect to get a little bit of rustic, a little classic, and a little bit of glamour to your home.
Little by little he was preparing himself, unwittingly, for the miracle.
Carrying case is little smaller on the sides, little taller.