-nontechnical-

adj. 1. not characteristic of or skilled in applied arts and sciences; as, nontechnical aspects of the job; nontechnical training. Opposite of technical.
Syn. -- untechnical. [ WordNet 1.5 ]

2. comprehensible to the general public; not requiring specialized training to be understood; as, written for the popular press in plain nontechnical language.
Syn. -- lay, plain, popular, unspecialized, untechnical. [ WordNet 1.5 ]