Painful

Examples of usage:

1. It would have saved us a good many anxious and painful hours.
   "The Squire's Daughter", Silas K(itto) Hocking.
2. If a visit to him would not be painful, he has begged it may be this morning.
   "The Gamester (1753)", Edward Moore Commentator: Charles H. Peake Phillip R. Wikelund.
3. It is naturally a deeply painful subject to me.
   "A Terrible Secret", May Agnes Fleming.