sanctioned

adjective

1. Generally approved or agreed upon: accepted, conventional, orthodox, received, recognized. See accept/reject, agree/disagree, straight/bent, usual/unusual.
2. Having or arising from authority: authoritative, conclusive, official, standard. See true/false.
3. Adhering to beliefs or practices approved by authority or tradition: canonical, orthodox, received, time-honored. See usual/unusual.

The adjective has 3 meanings:

Meaning #1: conforming to orthodox or recognized rules
  Synonyms: canonic, canonical

Meaning #2: formally approved and invested with legal authority
  Synonym: ratified

Meaning #3: established by authority; given authoritative approval
  Synonym: approved