elementary (
http://definr.com/elementary)
adj 1: 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" [syn:
simple,
uncomplicated,
unproblematic]
2: of or being the essential or basic part; "an elementary need
for love and nurturing" [syn:
primary]