Definitions of backward:

• adjective:   retarded in intellectual development
• adjective:   directed or facing toward the back or rear

  Example: "A backward view"

• adjective:   (used of temperament or behavior) marked by a retiring nature

  Example: "A backward lover"

• adverb:   in a manner or order or direction the reverse of normal

  Example: "It's easy to get the `i' and the `e' backward in words like `seize' and `siege'"

• adverb:   in or to or toward a past time

  Example: "Lovers of the past looking fondly backward"

• adverb:   at or to or toward the back or rear

  Example: "Tripped when he stepped backward"