orthodox (n.)
orthodox (adj.)
- accepted
 - accordant
 - accustomed
 - acknowledged
 - anal
 - approved
 - authentic
 - authoritative
 - authorized
 - bourgeois
 - button-down
 - canonical
 - canonist
 - common
 - compulsive
 - concordant
 - conformable
 - conformist
 - conservative
 - conventional
 - correct
 - corresponding
 - customary
 - decent
 - decorous
 - die-hard
 - doctrinal
 - dour
 - established
 - evangelical
 - faithful
 - firm
 - fogyish
 - formal
 - formalistic
 - fundamentalist
 - hard
 - harmonious
 - hidebound
 - inexorable
 - inflexible
 - iron
 - ironclad
 - kosher
 - literal
 - meet
 - muscle-bound
 - obdurate
 - obstinate
 - official
 - old-line
 - ordinary
 - pedantic
 - plastic
 - popular
 - prevailing
 - prevalent
 - procrustean
 - proper
 - puritanic
 - reactionary
 - received
 - recognized
 - regular
 - relentless
 - right
 - rigid
 - rigorous
 - rockbound
 - sanctioned
 - scriptural
 - seemly
 - sound
 - square
 - standard
 - stiff
 - straight
 - straightlaced
 - straitlaced
 - stubborn
 - stuffy
 - textual
 - tory
 - traditional
 - traditionalist
 - traditionalistic
 - true
 - true-blue
 - unbending
 - uncompromising
 - unrelenting
 - unyielding
 - uptight
 
And prove their doctrine orthodox,
By apostolic blows and knocks.