Final answer:
The terms regular, continuous, and substantial indeed suggest an activity is not passive, making that statement True. The notion that non-sustainability-oriented activities inherently lead to failure is subjective and could be revised to promote alignment with sustainable practices for long-term success.
Step-by-step explanation:
The statement that terms indicating an activity is NOT passive include regular, continuous, and substantial is True. These terms suggest active involvement and consistent effort which are the opposite of a passive activity. In regards to the second part of your question, which seems to relate to sustainability, it is a matter of opinion to state that any activity not geared toward contributing to ultimate success is likely only contributing to failure. It is also subjective to claim that most activities fall into the latter category. Instead, it can be more objectively stated that activities should ideally be oriented towards sustainability to contribute positively to long-term success.