简单的；不复杂的；

1. easy and not involved or complicated

    e.g. an elementary problem in statistics
           elementary, my dear Watson
           a simple game
           found an uncomplicated solution to the problem

    Synonym: elementarysimpleunproblematic

2. lacking complexity

    e.g. small and uncomplicated cars for those really interested in motoring
           an unsophisticated machine

    Synonym: unsophisticated