nondiverse,adj.1. Of or relating to similar types <the attorney’s practice is nondiverse: she handles only criminal matters>.2. (Of a person or entity) having the same citizenship as the party or parties on the other side of a lawsuit <the parties are nondiverse because both plaintiff and defendant are California citizens>. See diversity jurisdiction under JURISDICTION. [Cases:

Federal Courts 286.1.]

[Blacks Law 8th]