Partaker is a antonym of refuser.
As nouns the difference between refuser and partaker
is that refuser is one who refuses while partaker is one who partakes of something.
partaker
English
Noun
(
en noun)
one who partakes of something
- The joint was passed around the circle, but he was not a partaker , so he waved it away.
Synonyms
* (one who partakes) imbiber, member, participant, user
Antonyms
* (one who partakes) abstainer, faster, refuser