1. Without explicit official permission
   "unsanctioned use of company cars"

See also: unofficial

• tank town
• tanka
• tankage
• tankard
• tanked up
• tanker
• tanker plane
• tankful
• tannate
• tanned
• Tannenberg
• tanner
• tanner's cassia
• tannery
• tannia
• tannic
• tannic acid
• tannin
• tanning
• tanning bed
• tannish
• tannoy
• Tanoan
• Tanoan language
• tansy