of doctrine(s)

accepted, traditional

allowed by law; connected with law

allowable, permissible

born of parents who are married to each other; according to law or public opinion of correct or moral behaviour

authentic, valid, legal

done legally (especially concerning conditions for an activity to be carried out)

legal

of, concerning, a position of trust or authority

authorized, legitimate

(having opinions, beliefs etc which are) generally accepted or approved

accepted, traditional

that is allowed

allowable, legal

evenly arranged; systematic; coming, happening, done, again and again at equal intervals

normal, common

usual, established

usual, established