English edit

Etymology edit

down +‎ bound

Adjective edit

downbound (not comparable)

  1. Moving in a direction that is considered down, such as downstream or to a lower level.
    • 1968, The Code of Federal Regulations of the United States of America, page 203:
      All downbound vessels shall enter Lake Erie through the East Outer Channel east of Detroit River Light ...
    • year unknown, United States. Congress. Senate. Committee on Commerce, Hearings
      Of the tonnage downbound, 11,946,000 gross tons was destined to ports on Lake Ontario ...

Adverb edit

downbound (not comparable)

  1. Moving down.