"Undifferentiated" Natural Recordings by Native Speakers
Lacking clear-cut characteristics or features; not different in purpose, nature, or quality; all mixed together or blended in a way that makes it difficult to distinguish.
Example: "The undifferentiated mass of information made it hard to identify the relevant points."
Meaning: Not discouraged or disappointed: able to stop doing something, or unable to be stopped, just because something difficult or unpleasant happens.
Consistent and unwavering in direction, purpose, or opinion; not deviating or straying from a course or principle.