1. Violating accepted standards or rules
   "fined for unsportsmanlike behaviour"
   - cheating, dirty, foul, unsporting

See also: unfair, unjust

• probiotic microflora
• probity
• problem
• problem solver
• problem solving
• problem-oriented language
• problematic
• problematical
• problematically
• problematise
• problematize
• problemo
• Proboscidea
• Proboscidea arenaria
• Proboscidea fragrans
• Proboscidea louisianica
• proboscidean
• proboscidian
• proboscis
• proboscis flower
• proboscis monkey
• proboscis worm
• procaine
• procaine hydrochloride
• procambium