Rudimentary refers to: 1.Being or involving basic facts or principles "these rudimentary truths" 2.Being in the earliest stages of development "rudimentary plans" 3.Not fully developed in mature animals ."rudimentary wings" primitive 1.Belonging to an early stage of technical development; characterized by simplicity and (often) crudeness "primitive movies of the 1890s"; "primitive living conditions in the Appalachian mountains" 2.Little evolved from or characteristic of an earlier ancestral type "primitive mammals"; "the okapi is a short-necked primitive cousin of the giraffe" 3.Of or created by one without formal training; simple or naive in style "primitive art such as that by Grandma Moses is often colourful and striking" as to noun 1.A person who belongs to an early stage of civilization 2.A mathematical expression from which another expression is derived 3.A word serving as the basis for inflected or derived forms "'pick' is the primitive from which 'picket' is derived" primary refers to 1.Of first rank or importance or value; direct and immediate rather than secondary "primary goals"; "a primary effect"; "primary sources"; "a primary interest" 2.Not derived from or reducible to something else; basic "a primary instinct" 3.Most important element. "policemen were primary targets" 4.Of or being the essential or basic part 5.Of primary importance as to noun 1.A preliminary election where delegates or nominees are chosen 2.One of the main flight feathers projecting along the outer edge of a bird's wing 3.(astronomy) a celestial body (especially a star) relative to other objects in orbit around it 4.Coil forming the part of an electrical circuit such that changing current in it induces a current in a neighbouring circuit "current through the primary coil induces current in the secondary coil" cowboy...

Fundamental refers to: 1.Serving as an essential component "an example that was fundamental to the argument"; "computers are fundamental to modern industrial structure" 2.Being or involving basic facts or principles "the fundamental laws of the universe"; "a fundamental incomatibility between them" 3.Far-reaching and thoroughgoing in effect especially on the nature of something "the fundamental revolution in human values that has occurred"; "the book underwent fundamental changes"; "committed the fundamental error of confusing spending with extravagance" as to noun 1.Any factor that could be considered important to the understanding of a particular business "fundamentals include a company's growth, revenues, earnings, management, and capital structure" 2.The lowest tone of a harmonic series Basic refers to: 1.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.Reduced to the simplest and most significant form possible without loss of generality "a basic story line" 3.Serving as a base or starting point "a basic course in Russian"; "basic training for raw recruits"; "a set of basic tools" 4.Of or denoting or of the nature of or containing a base 5.Relating to or containing an alkali; having a pH greater than 7 elementary refers to: 1.Easy and not involved or complicated "an elementary problem in statistics"; "elementary, my dear Watson" 2.Of or pertaining to or characteristic of elementary school or elementary education "the elementary grades"; "elementary teachers" 3.Of or being the essential or basic part "an elementary need for love and nurturing" cowboy...

primary adj. 1. First or highest in rank, quality, or importance; principal. 2. Being or standing first in a list, series, or sequence. 3. Occurring first in time or sequence; earliest. 4. Being or existing as the first or earliest of a kind; primitive. 5. Geology Characteristic of or existing in a rock at the time of its formation. 6. Serving as or being an essential component, as of a system; basic. See Synonyms at chief. 7. a. Immediate; direct: a primary effect; a primary information source. b. Preliminary to a later stage in a continuing process: primary training. c. Of or relating to a primary school: the primary grades. 8. Of or relating to a primary color or colors. 9. Linguistics a. Having a word root or other linguistic element as a basis that cannot be further analyzed or broken down. Used of the derivation of a word or word element. b. Referring to present or future time. Used as a collective designation for various present and future verb tenses in Latin, Greek, and Sanskrit. 10. Electronics Of, relating to, or constituting an inducting current, circuit, or coil. 11. Of, relating to, or designating the main flight feathers projecting along the outer edge of a bird's wing. 12. Of or relating to agriculture, forestry, the industries that extract natural materials from the earth, or the products so obtained: a primary commodity. 13. Chemistry a. Relating to the replacement of one of several atoms or radicals in a compound by another atom or radical. b. Having a carbon atom attached solely to one other carbon atom in a molecule. 14. Botany Of, relating to, or derived from a primary meristem.

4. a. One belonging to an early stage in the development of an artistic trend, especially a painter of the pre-Renaissance period. b. An artist having or affecting a simple, direct, unschooled style, as of painting. c. A self-taught artist. d. A work of art created by a primitive artist. 5. Linguistics a. A word or word element from which another word is derived by morphological or historical processes or from which inflected forms are derived. b. A basic and indivisible unit of linguistic analysis. Also called prime. 6. Mathematics An algebraic or geometric expression from which another expression is derived. 7. Computer Science A basic or fundamental unit of machine instruction or translation.

primitive adj. 1. Not derived from something else; primary or basic. 2. a. Of or relating to an earliest or original stage or state; primeval. b. Being little evolved from an early ancestral type. 3. Characterized by simplicity or crudity; unsophisticated: primitive weapons. See Synonyms at rude. 4. Anthropology Of or relating to a nonindustrial, often tribal culture, especially one that is characterized by a low level of economic complexity: primitive societies. 5. Linguistics a. Serving as the basis for derived or inflected forms: Pick is the primitive word from which picket is derived. b. Being a protolanguage: primitive Germanic. 6. Relating or belonging to forces of nature; elemental: primitive passions. 7. a. Of or created by an artist without formal training; simple or naive in style. b. Of or relating to the work of an artist from a nonindustrial, often tribal culture, especially a culture that is characterized by a low level of economic complexity. 8. Of or relating to late medieval or pre-Renaissance European painters or sculptors. 9. Biology Occurring in or characteristic of an early stage of development or evolution. n. 1. Anthropology A person belonging to a nonindustrial, often tribal society, especially a society characterized by a low level of economic complexity. 2. An unsophisticated person. 3. One that is at a low or early stage of development.