资料来源 : pyDict

先行;先在;逆行

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

Antecedency \An`te*ced"en*cy\, n.
   The state or condition of being antecedent; priority.
   --Fothherby.

资料来源 : WordNet®

antecedency
     n : preceding in time [syn: {priority}, {antecedence}, {anteriority},
          {precedence}, {precedency}] [ant: {posteriority}]