1. 倒退的;后退的;退化的
A retrograde action is one that you think makes a situation worse rather than better.

1. get worse or fall back to a previous condition

Synonym: regressretrogress

2. go back over

e.g. retrograde arguments

Synonym: rehashhash over

3. move back

e.g. The glacier retrogrades

Synonym: retreat

4. move in a direction contrary to the usual one

e.g. retrograding planets

5. move backward in an orbit, of celestial bodies