For a devout Christian, saying Jesus does not exist is an example of something that would be heretical.
- of heresy or heretics
- containing, characterized by, or having the nature of heresy
Origin of hereticalMedieval Latin haereticalis
- Of or relating to heresy or heretics.
- Characterized by, revealing, or approaching departure from established beliefs or standards.
(comparative more heretical, superlative most heretical)
Middle English, from Middle French eretical and from Medieval Latin haereticalis, from haereticus. See heretic.