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 (ro͞o′də-mĕn′tə-rē, -mĕn′trē)
1. Of or relating to basic facts or principles; elementary: I have only a rudimentary knowledge of Greek.
2. Being in an early stage of development or having a simple form: traveled upriver in a rudimentary boat.
3. Biology Imperfectly or incompletely developed: a mutant mouse with rudimentary claws.

ru′di·men·tar′i·ly (-târ′ə-lē) adv.
ru′di·men′ta·ri·ness n.


(ˌruːdɪˈmɛntərɪ) or less commonly


1. basic; fundamental; not elaborated or perfected
2. (Biology) incompletely developed; vestigial: rudimentary leaves.
ˌrudiˈmentarily, ˌrudiˈmentally adv


(ˌru dəˈmɛn tə ri, -tri)

also ru`di•men′tal,

1. of or pertaining to rudiments or first principles; elementary.
2. undeveloped or vestigial.
3. primitive; crude.
ru`di•men•ta′ri•ly (-mɛnˈtɛər ə li, -ˈmɛn tər-) adv.
ru`di•men′ta•ri•ness, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.rudimentary - being or involving basic facts or principles; "the fundamental laws of the universe"; "a fundamental incomatibility between them"; "these rudimentary truths"; "underlying principles"
basic - pertaining to or constituting a base or basis; "a basic fact"; "the basic ingredients"; "basic changes in public opinion occur because of changes in priorities"
2.rudimentary - being in the earliest stages of development; "rudimentary plans"
incomplete, uncomplete - not complete or total; not completed; "an incomplete account of his life"; "political consequences of incomplete military success"; "an incomplete forward pass"
3.rudimentary - not fully developed in mature animals; "rudimentary wings"
biological science, biology - the science that studies living organisms
undeveloped - not developed; "courses in interior design were rare and undeveloped"; "undeveloped social awareness"


1. primitive, simple, basic, rough, crude, makeshift, undeveloped, unsophisticated, rough and ready It had been extended into a kind of rudimentary kitchen.
2. basic, fundamental, elementary, early, primary, initial, introductory He had only a rudimentary knowledge of French.
3. undeveloped, incomplete, immature, embryonic, vestigial a rudimentary backbone called a notochord
undeveloped advanced, mature, refined, later, higher, developed, complete, sophisticated


Of or treating the most basic aspects:
بِدائي، أوَّلي
frumstæîur, vanòróaîur


[ˌruːdɪˈmentərɪ] ADJ (gen) → rudimentario (Bio) → rudimental
he has rudimentary Latintiene las primeras nociones de latín, sabe un poquito de latín


[ˌruːdɪˈmɛntəri] adjrudimentaire


adj (= basic) principleselementar; equipmentprimitiv; language, systemrudimentär; (Biol) → rudimentär; rudimentary knowledgeGrundkenntnisse pl; in a rudimentary wayin einer primitiven Form or Art und Weise


[ˌruːdɪˈmɛntrɪ] adjrudimentale


(ˈruːdimənts) noun plural
the first simple facts or rules of anything. to learn the rudiments of cookery.
rudiˈmentary (-ˈmen-) adjective
primitive or undeveloped. rudimentary tools.
References in periodicals archive ?
In China the legal forms and the sociological foundations of a capitalist enterprise were lacking with its rational objectivation of the economy, as they rudimentally were present quite early in the commercial law of the Italien cities" (Weber 1920/1991: 96).
AI techniques were only rudimentally implemented then.