1. Toward the source or against the current
   - upstream

Antonym: downriver

• stalker
• stalking
• stalking-horse
• stalkless
• stalky
• stall
• stall bar
• stall-fed
• stall-feed
• stalling
• stallion
• stalls
• stalwart
• stalwartly
• stalwartness
• Stamboul
• Stambul
• stamen
• stamina
• staminate
• stammel
• stammer
• stammerer
• stammeringly
• stamp