They seem unbearably spoilt and can't take much pressure.
"The cabinet is of the opinion that a request for help (in dying) from people who suffer unbearably and have no hope without an underlying medical reason can be a legitimate request".
The office was unbearably tense.
For many people dining out simply has to be a social experience and so to sit alone at a restaurant table would just be unbearably awkward.
He quotes Updike describing the facts of life as "unbearably heavy, weighted as they are with our personal death.
That's not unbearably expensive, but the cost is comparable to produce we'd consider exotic in the US.