aginner

agin +‎ -er, from agin (“against”).

• IPA^(key): /əˈɡɪnə(ɹ)/

aginner (plural aginners)

1. An oppositional person, especially one opposed to government actions and projects.
   • 1988, R. Robert Cueni, What Ministers Can't Learn in Seminary: A Survival Manual for the Parish Ministry:

     Being an aginner carries prestige without asking for contribution. Some clergy succumb to the temptation of being aginners. They are difficult to befriend. Because they must be alert to imperfections, they never relax their fault-finding vigilance.

• Reginan, aningre, earning, engrain, geranin, grannie, nearing, nigeran