IPA: /nɒnˈɔːtəˌmætɪk/
KK: /nɑnəˈɔtəmætɪk/
Not done automatically; requiring human intervention or action.
The machine has a nonautomatic mode that allows users to control the settings manually.
Nonautomatic → It is formed from "non-" (meaning not) and "automatic" (from Greek "automatos", meaning self-moving). The word "nonautomatic" means not self-moving or requiring manual operation.
Think of 'not' ('non-') and something that moves by itself ('automatic') — that's why nonautomatic refers to something that does not operate on its own.