a.

1. 習慣的，習以為常的
   Habitual tardiness is irritating to the teachers.

   學生遲到習以為常令教師惱火。

2. 慣常的
   Farmers are habitual early risers.

   農夫慣常早起。

adj.

1. done constantly or as a habit.
2. regular; usual:
   his habitual dress.