The Collaborative International Dictionary of English v.0.48:

Solifidian \Sol`i*fid"i*an\, n. [L. solus alone + fides faith.]
   (Eccl.)
   One who maintains that faith alone, without works, is
   sufficient for justification; -- opposed to nullifidian.
   --Hammond.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Solifidian \Sol`i*fid"i*an\, a.
   Holding the tenets of Solifidians; of or pertaining to the
   solifidians.
   [1913 Webster]