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rudimentary

rudimentary

2 6.8
A body part that is not fully developed and often too small to work
  • adjective
  • /ˌruːdɪˈmɛnˌtɛri/
  • Specialized
translation icon : rudimentario
  • In the short run, financing these expenses through taxation will be unrealistic because Baghdad's machinery of taxation remains rudimentary.
  • rudimentary human tissue

Examples

  • Of the six branchial arches in humans, the fifth and sixth are rudimentary.

    Academic text (2008)
  • Due to his rudimentary grasp of the language, he struggled to form complete sentences.

  • The boys also have rudimentary gills.

    Fiction book (1996)
  • Only one case of rudimentary thumb polydactyly was observed.

    Academic text (2015)
  • The "body," by contrast, is rudimentary: a limbless torso with female breasts on one side standing on a round base.

    Academic text (2006)
  • In two patients, the uterus and fallopian tubes were fully developed, and in only one patient, a rudimentary uterus was observed.

    Academic text (2012)
  • Their eyes are rudimentary, appearing as small lightly shaded areas of skin (Hart, 1973).

    Academic text (1993)
  • The tablet had the rudimentary form of a lizard, with an abbreviated head, tail, and legs breaking the otherwise oblong form.

    Fiction book (1999)
  • More remarkably, tunicates have larvae that resemble tadpoles, complete with a dorsal nerve cord and a rudimentary backbone called a notochord.

    Academic text (1992)
  • The child's understanding of math is still quite rudimentary at this stage.

Synonyms

primitive
vsrudimentary
183 5.1

From an early stage of development that is simple and not advanced

refers specifically to body parts not fully developed or basic
vestigial
vsrudimentary
  • Specialized
9 8.3

A small leftover body part from an ancestor that no longer has a use

indicates incomplete development rather than leftover remnant from ancestors
inchoate
vsrudimentary
  • Formal
4 9.9

Not fully formed and only partly developed, like an idea or plan

describes not fully developed rather than only beginning
rudimental
vsrudimentary
7.0

Very basic and not fully developed

is used for not fully developed body parts or organs

Antonyms

2.3

Being more complete and useful after growth or change

How Developed

functional
60 4.2
rudimentary
  • Specialized
2 6.8
vestigial
  • Specialized
9 8.3
unformed
4 5.4

Surface Forms

rudimentary positive
rudimentarier comparative
rudimentarist superlative

Morphology

rudimentary = rudiment (transparent) = rudiment + ary

The anatomical sense ('not fully developed') is a direct extension of 'rudiment' meaning 'undeveloped remnant', formed by adding '-ary'.

Etymology

Rudimentary comes from the Latin word rudimentum, which is from rudis meaning 'rough' or 'untrained'. That's why we use rudimentary for a body part that is only a simple, not fully formed version.