Definition of heterodox
1
: contrary to or different from an acknowledged standard, a traditional form, or an established religion : unorthodox, unconventional
heterodox ideas
2
: holding unorthodox opinions or doctrines
a heterodox religious sect
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Merriam-Webster unabridged
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Time Traveler for heterodox
The first known use of heterodox was circa 1650
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