downward

adjectives

extending or moving from a higher to a lower place
"the down staircase"; "the downward course of the stream"
on or toward a surface regarded as a base
"he lay face downward"; "the downward pull of gravity"
is similar to
being or moving lower in position or less in some value
"lay face down"; "the moon is down"; "our team is down by a run"; "down by a pawn"; "the stock market is down today"

adverbs

spatially or metaphorically from a higher to a lower level or position
"don't fall down"; "rode the lift up and skied down"; "prices plunged downward"
antonym