ELEMENTARY
elementary, simple, uncomplicated, unproblematic
(adjective) easy and not involved or complicated; “an elementary problem in statistics”; “elementary, my dear Watson”; “a simple game”; “found an uncomplicated solution to the problem”
elementary, elemental, primary, basal
(adjective) of or being the essential or basic part; “an elementary need for love and nurturing”; “a basal reader”
elementary
(adjective) of or pertaining to or characteristic of elementary school or elementary education; “the elementary grades”; “elementary teachers”
Source: WordNet® 3.1
Etymology
Adjective
elementary (comparative more elementary, superlative most elementary)
Relating to the basic, essential or fundamental part of something.
Relating to an elementary school.
(physics) Relating to a subatomic particle.
(archaic) Sublunary; not celestial; belonging to the sublunary sphere, to which the four classical elements (earth, air, fire and water) were confined; composed of or pertaining to these four elements.
Noun
elementary (plural elementaries)
An elementary school
(mythology, mysticism) A supernatural being which is associated with the elements.
Source: Wiktionary
El`e*men"ta*ry, a. Etym: [L. elementarius: cf. F. élémentaire.]
1. Having only one principle or constituent part; consisting of a
single element; simple; uncompounded; as, an elementary substance.
2. Pertaining to, or treating of, the elements, rudiments, or first
principles of anything; initial; rudimental; introductory; as, an
elementary treatise.
3. Pertaining to one of the four elements, air, water, earth, fire.
"Some luminous and fiery impressions in the elementary region." J.
Spencer.
Source: Webster’s Unabridged Dictionary 1913 Edition