heretical (adj.)
- aberrant
- abroad
- adrift
- agnostic
- amiss
- antinomian
- apocryphal
- apostate
- askew
- atheistic
- awry
- beat
- breakaway
- corrupt
- deceptive
- defective
- delusive
- deviant
- disbelieving
- dissentient
- dissenting
- dissident
- distorted
- errant
- erring
- erroneous
- faithless
- fallacious
- false
- faulty
- flawed
- fringy
- godless
- heathen
- heretic
- heterodox
- iconoclastic
- idolatrous
- illogical
- illusory
- impious
- incredulous
- individualistic
- informal
- irreligious
- kinky
- maverick
- nonconformist
- off
- offbeat
- original
- out
- pagan
- pantheist
- pantheistic
- peccant
- perverse
- perverted
- repudiative
- schismatic
- sectarian
- self-contradictory
- straying
- unaccepted
- unauthentic
- unbelieving
- unconventional
- unconverted
- unconvinced
- unfashionable
- unorthodox
- unproved
- unsound
- untrue
- wide
- wrong
