No. Priorities are an absolutely fixed list.
Resolutions are also a fixed list, but you can include/exclude them from the field in the workflow. It's a really ugly clunkly workaround, but can be made to work.
See what's top of the voted-by-users list at https://jira.atlassian.com/browse/JRA-3821
Badges are a great way to show off community activity, whether you’re a newbie or a Champion.Learn more
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG