verb (used with object), for·gave, for·giv·en, for·giv·ing.
verb (used without object), for·gave, for·giv·en, for·giv·ing.
Examples from the Web for unforgivable
Government activism on behalf of the common man was an unforgivable sin to be extirpated from the body politic.The South Has Indeed Risen Again and It’s Called the Tea Party|Jack Schwartz|December 8, 2013|DAILY BEAST
But for a coach to forget how much his players need his support in moments of defeat is just unforgivable.Alabama Coach Nick Saban’s Folly: Great Coaches Protect Their Players|Stuart Stevens|December 2, 2013|DAILY BEAST
The unforgivable java sin of a Pumpkin Spice Latte at Starbucks.Black Friday Comes Early as U.S. Retailers Panic Over Holiday Sales|Daniel Gross|November 21, 2013|DAILY BEAST
People forgive you for a lot of your past indiscretions, but this, they feel, is unforgivable.Mike Tyson Opens Up About His Rape Conviction, Brad Pitt, and Love of Pinkberry|Marlow Stern|November 6, 2013|DAILY BEAST
“People in wheelchairs were living in this place, this is unforgivable,” says the father of a young caretaker in the movie.
But to choose the surest bait, and then to bring back no fish, is unforgivable.Fishing with a Worm|Bliss Perry
Courtesy requires, no matter how unforgivable the offense, that an apology should be accepted.The Etiquette of To-day|Edith B. Ordway
I forgot the new and unforgivable grudge I had against him now.A Thief in the Night|E. W. Hornung
It's an unforgivable offense in Miss Merton's eyes to walk into chapel after the service has begun.Marjorie Dean High School Freshman|Pauline Lester
He had gone into an inadvertent spin, the unforgivable sin in a flight test.Test Pilot|David Goodger (email@example.com)