descending

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

coming down or downward (Freq. 1)
• Ant:
ascending
• Similar to:
declivitous, downhill, downward-sloping, degressive, descendant,
descendent, down, downward, downward-arching, drizzling, dropping,
falling, raining
• See Also:
down