资料来源 : pyDict

同盟的,联合的,联邦的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Confederative \Con*fed"er*a*tive\ (? or ?), a.
   Of or pertaining to a confederation.

资料来源 : WordNet®

confederative
     adj : united in a confederacy or league [syn: {allied}, {confederate}]