苦しい (translations)→ agonized agonizing agony bad choked hard hurt ordeal pain painful painfully sick sorrow stciky suffer thorny tight uncomfortable unpleasant worry
苦しみ (translations)→ care commiseration heartache misery misfortune trauma travail
苦痛 (translations)→ penance stab taste
苦難 (translations)→ despair endurance
苦悩 (translations)→ affliction angst anguish chagrin depression dilemma dismay distraction hell laceration
悲しみ (translations)→ grief lamentation ruth sadness unhappiness