Stressful
Dukkha Sutta (SN 22:142)

Near Sāvatthī. “Monks, whatever is stressful, you should abandon desire-passion there. And what is stressful?

“Form, monks, is stressful. You should abandon desire-passion there.

“Feeling is stressful. You should abandon desire-passion there.

“Perception is stressful. You should abandon desire-passion there.

“Fabrications are stressful. You should abandon desire-passion there.

“Consciousness is stressful. You should abandon desire-passion there.

“Monks, whatever is stressful, you should abandon desire-passion there.”