immature

Rudimentary is a related term of immature.

As adjectives the difference between rudimentary and immature

is that rudimentary is of or relating to one or more rudiments while immature is not fully formed or developed, unripe, not mature.

Immature is a related term of unhatched.

As adjectives the difference between immature and unhatched

is that immature is not fully formed or developed, unripe, not mature while unhatched is not yet hatched.

Fresh is a related term of immature.

As adjectives the difference between fresh and immature

is that fresh is newly produced or obtained or fresh can be rude, cheeky, or inappropriate; presumptuous; disrespectful; forward while immature is not fully formed or developed, unripe, not mature.

As a noun fresh

is a rush of water, along a river or onto the land; a flood.

As adjectives the difference between petulant and immature

is that petulant is exuberant, lively while immature is not fully formed or developed, unripe, not mature.

Immature is a related term of rough.

As adjectives the difference between immature and rough

is that immature is not fully formed or developed, unripe, not mature while rough is having a texture that has much friction not smooth; uneven.

As a noun rough is

the unmowed part of a golf course.

As a verb rough is

to create in an approximate form.

As an adverb rough is

in a rough manner; rudely; roughly.

Unschooled is a related term of immature.

As adjectives the difference between unschooled and immature

is that unschooled is not schooled; not having been to school while immature is not fully formed or developed, unripe, not mature.

As adjectives the difference between immature and irrational

is that immature is not fully formed or developed, unripe, not mature while irrational is not rational; unfounded or nonsensical.

As a noun irrational is

a real number that can not be expressed as the quotient of two integers, an irrational number.

Immature is a related term of unwary.

As adjectives the difference between immature and unwary

is that immature is not fully formed or developed, unripe, not mature while unwary is lacking]] caution as a result of [[naïveté or inexperience.

Immature is a related term of ridiculous.

As adjectives the difference between immature and ridiculous

is that immature is not fully formed or developed, unripe, not mature while ridiculous is deserving of ridicule; foolish; absurd.

Silly is a synonym of immature.

As adjectives the difference between immature and silly

is that immature is not fully formed or developed, unripe, not mature while silly is pitiable; deserving of compassion; helpless.

As a noun silly is

a silly person; a fool.