1. Having or using the ability to act or decide according to your own discretion or judgment
   - discretionary

See also: arbitrary

• Simulium
• simultaneity
• simultaneous
• simultaneous equations
• simultaneous operation
• simultaneously
• simultaneousness
• simvastatin
• sin
• Sinai
• Sinai Desert
• Sinai Peninsula
• Sinanthropus
• Sinapis
• Sinapis alba
• Sinapis arvensis
• sinapism
• Sinatra
• Sinbad
• Sinbad the Sailor
• since
• since a long time ago
• sincere
• sincerely
• sincerely yours