Definition of unlapsed:
(adj) :
Discontinued; having ceased or gone out of use.
(adj) :
(of a person) Changed to a less valued condition or state; especially having lost one's religious faith.
(adj) :
(humorous) By extension, having changed a (secular) belief or adherence.
(adj) :
(archaic, of a legacy) Having passed from the original holder or authority; no longer claimed.