"Intolerable suffering" means experiencing pain or distress that is so extreme, unbearable, or difficult to endure that it becomes impossible to tolerate or manage. Full definition
These were important findings from access to justice and access to medical services perspectives, as those seeking MAD would otherwise have had to bring applications for individual constitutional exemptions and to do so in the province in which they sought MAD — a much more significant burden, especially in light of the fact that applicants are persons claiming to have grievous and irremediable medical conditions causing intolerable suffering. (ablawg.ca)
If he and Voltaire and all the other literary «smugglers» of the same grand, ancient truth are wrong, which I doubt, if there really is no afterlife, nothing, zero, zilch, at least there'll be no more intolerable suffering amond humans or among the sentient creatures we call «beasts.» (religion.blogs.cnn.com)
There are others who want to die, perhaps to escape intolerable suffering, perhaps to relieve others of care. (religion-online.org)