SCHISMATIC
schismatic, schismatical
(adjective) of or relating to or involved in or characteristic of schism; “schismatic sects”
Source: WordNet® 3.1
Etymology
Adjective
schismatic
(religion) Of or pertaining to a schism
(music) Of or pertaining to a schisma
divisive
Noun
schismatic (plural schismatics)
(religion) A person involved in a schism
Source: Wiktionary
Schis*mat"ic (sîz*mât"îk; so nearly all orthoëpists), a. Etym: [L.
schismaticus, Gr. schismatique.]
Definition: Of or pertaining to schism; implying schism; partaking of the
nature of schism; tending to schism; as, schismatic opinions or
proposals.
Schis*mat"ic, n.
Definition: One who creates or takes part in schism; one who separates from
an established church or religious communion on account of a
difference of opinion. "They were popularly classed together as
canting schismatics." Macaulay.
Syn.
– Heretic; partisan. See Heretic.
Source: Webster’s Unabridged Dictionary 1913 Edition