unbearable

"That is so.  You are responsible for this, is that not so?"

"After running around the park, the child was covered in sweat. "

"The pain from her broken leg was so unendurable that she screamed. "

"The weather forecast predicted an unpleasant day, with rain and strong winds. "

"The long walk home after school was painful because of my sore feet. "

"The intricate making of the model airplane showcased the student's skill. "

"The school bus picked up the children every morning. "

"It looks weaker and weaker, the more I think about it."

"Everyone in the class needs to bring their textbook to the first lecture. "

"He might get cancer, or be hit by a bus, or God knows what."

"The man crowded into the packed room."

"This furnace puts out 5000 BTUs of heat.   That engine is really throwing off some heat.   Removal of heat from the liquid caused it to turn into a solid."