I just asked a question titled "What is the difference between a Heretic and a Schismatic" , and when I was selecting the tags, I noticed that I could use the tags "Heretic" and "Schism".
I believe heresy
is a better tag than heretic
, as the former suggests a group of people while the latter suggests a single person.
"Schism" likewise suggests the belief of a group of people, whereas "schismatic" suggests the belief of one person.