nonconventional

From non- +‎ conventional.

nonconventional (not comparable)

1. Not conventional.
   • 1988 December 18, Andrew Miller, “ACT UP/NY Addresses Alternative/Holistic Treatments”, in Gay Community News, volume 16, number 23, page 2:

     "Growing evidence suggests that only by broadening treatment strategies to include holistic and alternative treatments will a long-term solution to AIDS be found," Bob Lederer told GCN recently. Joined by a group of holistic healers, PWAs involved in nonconventional health care, and other interested ACT UP members, […]