To derive a process, rationale, etc. from its conclusions or results.

(software) Capable of interoperating with older systems.

(colloquial) Oriented backwards, particularly after a mishap. / (idiomatic, colloquial) Hopelessly misguided; contrary to what is normal, expected, or logical; having taken the utterly wrong choice.

(colloquial) Moving backwards, that is, rear end first. / (idiomatic, colloquial) In a hopelessly misguided manner; in a manner contrary to what is normal, expected, or logical.

(American football) A pass thrown backwards instead of forward, equivalent in the rules to a hand-off.

An effect in which increased production by a downstream manufacturer provides positive pecuniary externalities to an upstream manufacturer responsible for different stages of the same production process.

(transitive) To cause playout of (a video, audio, or other digital media file) to move very fast backwards in time, so that when the device is played, it will start at an earlier point.

(software) Capability of interoperating with older systems.

plural of backward induction

(gymnastics) A movement in which one's body is rolled backwards, by crouching on the ground and lifting one's legs complete over one's head and lifting the head at the end.