downbound

Adjective

 * 1) Moving in a direction that is considered down, such as downstream or to a lower level.
 * 2) * 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 ...
 * Of the tonnage downbound, 11,946,000 gross tons was destined to ports on Lake Ontario ...

Adverb

 * 1) Moving down.