sanctioned vs approved

sanctioned and approved both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sanctioned	No	Yes	No	No
approved	No	Yes	No	No

As adjectives, sanctioned and approved are synonyms defined as:

sanctioned and approved: established by authority; given authoritative approval

sanctioned (adjective)	approved (adjective)
established by authority; given authoritative approval	established by authority; given authoritative approval
formally approved and invested with legal authority
conforming to orthodox or recognized rules