A cash flow that starts negative, then becomes positive, and later remains positive is called ____________?

When a project or investment has a cash flow pattern that changes sign more than once, such as starting with a negative cash outflow, then turning positive and staying positive, it is called a non-normal cash flow.
In contrast, normal cash flows start with an initial outflow (negative) followed by all positive inflows. Non-normal cash flows are common in projects that require additional investments later.