Antonyms of adj downward-sloping

1 sense of downward-sloping

Sense 1
declivitous, downhill, downward-sloping -- (sloping down rather steeply)

INDIRECT (VIA descending) -> ascending -- (moving or going or growing upward; "the ascending plane"; "the ascending staircase"; "the ascending stems of chickweed")

Similarity of adj downward-sloping

1 sense of downward-sloping

Sense 1
declivitous, downhill, downward-sloping -- (sloping down rather steeply)
       => descending (prenominal) (vs. ascending) -- (coming down or downward)