(a.) Alt. of Declivous.

collapsing deciduous declined declining declivate declivous decurrent descendant descending dipping down down-reaching downcoming downfalling downgoing downgrade downhill downsinking downward drooping dropping falling inclining leaning oblique on the descendant on the downgrade pitched plummeting plunging sagging setting sinking sloped sloping submerging subsiding tilted tipped tottering tumbledown