Found 2 items, similar to declivitous.
English → English (WordNet) Definition: declivitous declivitous adj : sloping down rather steeply [syn: downhill, downward-sloping]
English → English (gcide) Definition: Declivitous Declivitous \De*cliv"i*tous\, Declivous \De*cli"vous\, a. Descending gradually; moderately steep; sloping; downhill. [1913 Webster]