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

See also: unofficial

• perfectibility
• perfectible
• perfection
• perfectionism
• perfectionist
• perfective
• perfective aspect
• perfective tense
• perfectly
• perfectness
• perfervid
• perfidious
• perfidiously
• perfidiousness
• perfidy
• perfluorocarbon
• perfoliate
• perfoliate leaf
• perforate
• perforated
• perforated eardrum
• perforating vein
• perforation
• perforator
• perforce