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What is another word for immature?

Need synonyms for immature? Here's a list of similar words from our thesaurus that you can use instead.

Contexts ▼

Being, or relating to those, of a young age

Showing naivete or inexperience due to youth

Not fully mature or developed

Annoyingly or embarrassingly immature in nature or behavior

In an early stage

Lacking sense, meaning, or purpose

Newly produced or obtained

(of an organ or body part) Having become biologically functionless in the course of evolution

Below the usual or expected size

Acting or done quickly and without thought or care

Characterized by a period of development or formation

Distasteful, crass or vulgar in nature

Engaging in childish misbehavior

… more ▼

Adjective

Being, or relating to those, of a young age

in the springtime of life

unsophisticated

bread-and-butter

not far advanced

in one's salad days

more ❯

“Care and protection should be the natural right of every child during their immature years.”

Adjective

Showing naivete or inexperience due to youth

unsophisticated

wet behind the ears

as green as grass

lacking experience

unfamiliar with

not dry behind ears

like a babe in the woods

readily swallowing whole

readily taken in

easily deceived

easily taken in

readily falling for

in the experimental stage

unknowledgeable

slow on the uptake

uncomprehending

thick as two short planks

not the full shilling

as thick as two short planks

a brick short of a load

two sandwiches short of a picnic

dead from the neck up

indiscriminating

honest-to-goodness

more ❯

“Five years ago, I made a reckless and immature mistake, and I'm grateful to those close to me who helped me learn a valuable lesson as a young man.”

Adjective

Not fully mature or developed

“This indicates that a huge risk exists in spinning out at a stage when the technology is still immature.”

Adjective

Annoyingly or embarrassingly immature in nature or behavior

“He has almost become a man. and therefore seems less tolerant of Tom's immature pranks.”

Adjective

In an early stage

newly-established

unindustrialized

in an early stage

newly-constituted

more ❯

Adjective

Lacking sense, meaning, or purpose

devoid of intelligence

feather-brained

lacking seriousness

wet behind the ears

as thick as two short planks

inconsequential

dead from the neck up

ill-thought-out

incomprehensible

without rhyme or reason

not intelligent

slow on the uptake

mentally deficient

thick as two short planks

mentally handicapped

without thought

not the full shilling

soft in the head

extremely foolish

beyond all reason

out of all reason

stupidly irresponsible

uncomprehending

lacking in sense

one-dimensional

taking the cake

lacking substance

good-for-nothing

without foundation

self-contradictory

not making sense

beyond the bounds of possibility

of little consequence

of little importance

of no consequence

not worth bothering about

not worth mentioning

of little account

nickel-and-dime

out in left field

more ❯

Adjective

Newly produced or obtained

brand spanking new

hot off the fire

hot off the press

up to the minute

up-to-the-minute

state-of-the-art

contemporaneous

twenty-first-century

forward-looking

recently discovered

ground-breaking

out of the ordinary

newly discovered

recently developed

never-before-seen

bang up to date

occurring recently

appearing recently

in the mainstream

on front burner

common knowledge

previously unreleased

newly published

breaking new ground

twenty- first century

out of the common

forward-thinking

highly developed

ahead of the times

under consideration

for the time being

more ❯

Adjective

(of an organ or body part) Having become biologically functionless in the course of evolution

imperfectly developed

Adjective

Below the usual or expected size

miniaturized^US

miniaturised^UK

knee-high to a grasshopper

knee high to a grasshopper

with no room to swing a cat

knee high to a gnat

close to the ground

nickel-and-dime

not worth bothering about

indistinguishable

inconsequential

undistinguishable

invisible to the naked eye

impossible to detect

barely perceptible

extremely small

economic of space

a slip of a …

hard to make out

more ❯

Adjective

Acting or done quickly and without thought or care

jumping to conclusions

not thought through

badly thought out

spur-of-the-moment

hell-for-leather

ill-thought-out

playing with fire

jumping the gun

over-adventurous

spur of the moment

self-destructive

overventuresome

bull-in-a-china-shop

over-venturesome

leaving self wide open

off the deep end

asleep at the switch

going off deep end

more ❯

Adjective

Characterized by a period of development or formation

Adjective

Distasteful, crass or vulgar in nature

unsophisticated

rough-and-ready

ill-humoured^UK

lacking in social graces

uncomplimentary

in a state of nature

one-dimensional

rough-and-tumble

socially unsure

like a bull in a china shop

socially awkward

ungentlemanlike

undiscriminating

straightforward

low-down-and-dirty

rough and ready

raised in a barn

raised by wolves

with two left feet

like a bear with a sore head

confrontational

uncommunicative

on a short fuse

as cross as two sticks

having got out of bed on the wrong side

not afraid to call a spade a spade

unaccommodating

having short fuse

hot under collar

with a long face

hot under the collar

having got out of bed the wrong side

easily offended

huffy irascible

with chip on shoulder

with a chip on your shoulder

ready for a fight

have chip on shoulder

dishonorable^US

unsportsmanlike

dishonourable^UK

more ❯

Adjective

Engaging in childish misbehavior

ill-disciplined

full of mischief

attention-seeking

mischief-making

more ❯

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