资料来源 : pyDict

方言的,乡音的

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

Dialectal \Di`a*lec"tal\, a.
   Relating to a dialect; dialectical; as, a dialectical
   variant.

资料来源 : WordNet®

dialectal
     adj : belonging to or characteristic of a dialect; "dialectal
           variation"