A user lost interest and became inactive without a campaign to keep them engaged. How would you classify this user?

The ideal classification for the user who has lost interest and become inactive due to a lack of engagement campaigns is "Inactive." This term accurately describes someone who has not engaged with a product or service in a given period, particularly when there are no ongoing campaigns or efforts to maintain their interest.

In contrast, a user labeled as "Active" would still engage with the service or product regularly, which clearly doesn’t apply in this scenario. "Loyal" implies that the user consistently chooses the service and has positive sentiments towards it, while "Lapsing" suggests that the user is starting to lose engagement but not fully inactive yet. Since the user in question is no longer showing interest, classifying them as "Inactive" best reflects their status.