simple

simple [-er, -est] adj

OFr < L. sem-, 'one' + -plicāre, 'fold'

1. Natural; not artificial.
2. Free from ostentation or elaboration; unsophisticated.
3. Ordinary, not further distinguished in quality.
4. Of little value.
5. Undistinguished; humble.
6. Humble and weak; innocent.
7. Ignorant; foolish; unsuspecting.
8. Not complicated; easy.
9. With nothing added; by itself.