downward vs upward

downward and upward both are adjectives.

Word	Noun	Adjective	Verb	Adverb
downward	No	Yes	No	Yes
upward	No	Yes	No	Yes

downward (adjective)	upward (adjective)
extending or moving from a higher to a lower place	extending or moving toward a higher place
on or toward a surface regarded as a base	directed up

downward (adverb)	upward (adverb)
spatially or metaphorically from a higher to a lower level or position	spatially or metaphorically from a lower to a higher position
	to a later time