Antonyms of painful :
Examples of usage:
It would have saved us a good many anxious and painful hours. "The Squire's Daughter", Silas K(itto) Hocking.
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.
It is naturally a deeply painful subject to me. "A Terrible Secret", May Agnes Fleming.