苦；苦性；不圓滿性（四聖諦之首）

suffering; unsatisfactoriness; dukkha (the first noble truth)

痛苦；苦受（身苦或心苦）；不適

pain; painful feeling (bodily or mental); discomfort

（作形容詞）苦的；令人不快的；難以忍受的

(as adjective) painful; unpleasant; hard to bear