unauthorized
1. [ adjective ] not endowed with authority
Synonyms: unauthorised
Related terms: authorized unaccredited self-appointed unofficial illegitimate mandate
2. [ adjective ] without official authorization
Synonyms: wildcat unauthorised
Examples:

"an unauthorized strike" "wildcat work stoppage"

Related terms: unofficial
3. [ adjective ] without official authorization
Synonyms: wildcat
Examples:

"an unauthorized strike" "wildcat work stoppage"

Related terms: unofficial
Similar spelling:   unauthorised
  unmotorized
  unnaturalized