halfway 是個怎樣的詞

half是中性略含貶義的形容詞，副詞，例句：They have a break halfway through the moring. 他們幹了半個早上就休息壹。

但它的同義詞midway有這樣的例句：

The village lies midway between two large towns.這個村子位於兩個大城鎮中間