rudimentary

Unprepared is a related term of rudimentary.

As adjectives the difference between unprepared and rudimentary

is that unprepared is not prepared; caught by surprise while rudimentary is of or relating to one or more rudiments.

As a noun unprepared

is a black mark given to a pupil who arrives at a lesson without the necessary items or preparation.

Rudimentary is a related term of introductory.

As adjectives the difference between rudimentary and introductory

is that rudimentary is of or relating to one or more rudiments while introductory is introducing; giving a preview or idea of.

Rudimentary is a related term of essential.

As adjectives the difference between rudimentary and essential

is that rudimentary is of or relating to one or more rudiments while essential is necessary.

As a noun essential is

a necessary ingredient.

As adjectives the difference between rudimentary and simple

is that rudimentary is of or relating to one or more rudiments while simple is uncomplicated; taken by itself, with nothing added.

As a noun simple is

a preparation made from one plant, as opposed to something made from more than one plant.

As a verb simple is

to gather simples, ie, medicinal herbs.

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.

Rudimentary is a related term of key.

As an adjective rudimentary

is of or relating to one or more rudiments.

As a proper noun key is

.

Raw is a related term of rudimentary.

As an abbreviation raw

is (games) the rules as written: the actual rules appearing in the rulebook, as opposed to house rules, or as opposed to the rules that might have been intended (in the event of a mistake in the rulebook).

As an adjective rudimentary is

of or relating to one or more rudiments.

Callow is a related term of rudimentary.

As adjectives the difference between callow and rudimentary

is that callow is (obsolete) bald while rudimentary is of or relating to one or more rudiments.

As a noun callow

is a callow young bird.

Rudimentary is a related term of unfinished.

As adjectives the difference between rudimentary and unfinished

is that rudimentary is of or relating to one or more rudiments while unfinished is not finished, not completed.

Rudimentary is a related term of imperfect.

As adjectives the difference between rudimentary and imperfect

is that rudimentary is of or relating to one or more rudiments while imperfect is not perfect.

As a noun imperfect is

something having a minor flaw.