苦；苦性；不圆满性（四圣谛之首）

suffering; unsatisfactoriness; dukkha (the first noble truth)

痛苦；苦受（身苦或心苦）；不适

pain; painful feeling (bodily or mental); discomfort

（作形容词）苦的；令人不快的；难以忍受的

(as adjective) painful; unpleasant; hard to bear