名詞 rearward:

1. direction toward the rear

形容詞 rearward:

1. directed or moving toward the rear
   同義詞：reverse
2. located in or toward the back or rear
   同義詞：rear

副詞 rearward:

1. at or to or toward the back or rear
   同義詞：back, backward, backwards, rearwards

rearward

adv.（副詞）
Toward, to, or at the rear.
在后面：趨向，向或在后面
adj.（形容詞）
At or in the rear.
在后面的位置的
n.（名詞）
A rearward direction, point, or position.
后面：向后的方向、點(diǎn)或位置

【引伸】
rear.wards
adv.（副詞）

---------------另--------------
rearward
rearward 2

n.（名詞）
The rear guard of an armed force.
后尾部隊(duì)：某支軍事力量的后衛(wèi)部隊(duì)

來源：
Middle English rerewarde
中古英語 rerewarde
from Anglo-Norman
源自 英法語
rere [behind] from Latin retrô * see re-
rere [在后面] 源自 拉丁語 retrô *參見 re-
warde [guard] [of Germanic origin] * see wer- 3
warde [衛(wèi)兵] [屬日耳曼語源] *參見 wer- 3