Open English Wordnet
Adjectives
(s)elementary, simple, uncomplicated, unproblematiceasy and not involved or complicated“an elementary problem in statistics”, “elementary, my dear Watson”, “a simple game”, “found an uncomplicated solution to the problem”
(a)elementaryof or pertaining to or characteristic of elementary school or elementary education“the elementary grades”, “elementary teachers”
(s)elementary, elemental, primary, basalof or being the essential or basic part“an elementary need for love and nurturing”, “a basal reader”