a.

1. 道歉的，认错的；愧悔的[（+for/about）]
   She was apologetic for not keeping her promise.

   她对自己未能遵守诺言表示歉意。

   The Mayor's Office issued an apologetic statement regarding the Mayor's indiscreet remarks.

   有关市长的失言，市长办公室发布了一则道歉的新闻稿。

2. 辩解的，辩护的

n.

1. （为事业、信仰等所作的）辩护（书）[C]

adj.

1. making or expressing an apology.
2. constituting a formal justification of a theory or doctrine.