In transitive terms the difference between decouple and unfasten
is that decouple is to unlink; to take apart while unfasten is to loose; to unfix; to unbind; to untie; figuratively, to detach from any connecting link or agency; to disconnect.
unfasten
English
Verb
(
en verb)
To loose; to unfix; to unbind; to untie; figuratively, to detach from any connecting link or agency; to disconnect.
To come untied or unloosed.
Quotations
* , iv. 1. 209.
*: He doth unfasten so and shake a friend.
Synonyms
* undo
* unbutton
* untie
* unzip
Antonyms
* do up
* button
* button up
* tie up
* zip
* zip up