upwind

Adjective

• towards the side exposed to wind

Adverb

• in the direction opposite to the direction the wind is blowing
  • they flew upwind
    

• toward the wind
  • they were sailing leeward
    

Related words

• Synonyms: 
  weather(a) , against the wind , into the wind , leeward
• Antonyms: 
  downwind , windward