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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 ?
Prior to his development of these forecasts, not only were there were no publicly issued predictions for overall Atlantic basinwide activity, but Atlantic TC teleconnection patterns had only been rudimentarily investigated (Ballenzweig 1959).
2014) Static General Equilibrium (2017) (b) Trade Model (c) Conservative scenario (modelled on the experience of the EU-Korea trade agreement): European- Japanese free trade agreement abolishes non-tariff trade barriers only rudimentarily EU-Mercosur GLOBE simulation results Burrell et al.
If you use that statistic rudimentarily in the games under Clement, Swansea would have seen 13 points given up in games - leaving them worse off than Sunderland in the table.
According to activists, the method consists of plastic being rudimentarily heated up over fire until diesel, oil and other industrial greases can be extracted from it.
For instance, in many businesses, speech analytics systems have only rudimentarily been integrated with email and chat.
But in starting from rudimentarily mistaken assumptions, as I hope to have shown, this conversation had nowhere else to go.
Some trees have been rudimentarily hacked down and bushes twisted into makeshift shelters, and there are backpacks and scant belongings hidden among the rocks.
This spectral wave component has been understudied, even if it is contained in the quantum physics theories, but also in the neurophysiological concepts and it is rudimentarily highlighted at the level of overall cerebral activity through EEG and EMG.
or whether they should be more concerned about strengthening the institutional power of these at least rudimentarily deliberative settings vis-a-vis the executive branch, etc.
The reader will note that in the model the apex of psychological metamorphosis away from psychological misorientation is correct psychological orientation always--regardless whether the correct psychological orientation construct is conceptualized rudimentarily as unidimensional (Azibo, 2006a) or more elaborated multidimensionally (Azibo, Robinson-Kyles, & Johnson, 2013).
However, the precise mechanisms by which POL induces cancer cell death are still rudimentarily understood.
If students have been rudimentarily introduced to the epistemic spectrum, some sample "overarching" essential questions relating to epistemology, such as those below, could be discussed to warm them up to differing epistemic stances.