苦労【くろう】
trouble, hardship, difficulty, labour, labor, toil, pains, anxiety, worry, concern, cares
苦情【くじょう】
complaint, troubles, objection, grievance
苦しみ【くるしみ】
pain, anguish, distress, suffering, hardship
苦手【にがて】
poor (at), weak (in), not very good (at), not one's cup of tea, not one's favorite
苦悩【くのう】
(mental) agony, anguish, suffering, distress
苦い【にがい】
bitter
苦痛【くつう】
pain, agony, suffering, distress, torment
苦境【くきょう】
difficult situation, adverse circumstances, predicament, trouble, dilemma, distress
苦しめる【くるしめる】
to torment, to pain, to inflict (physical) pain, to hurt, to harass, to cause (emotional) pain, to afflict, to distress, to bother, to trouble, to stump, to baffle
苦しい【くるしい】
painful, difficult, tough, hard, distressing, (psychologically) difficult, stressful, awkward (e.g. position), straitened (circumstances), tight (financial situation), needy, struggling, strained (interpretation, explanation, etc.), lame (e.g. excuse), forced (e.g. smile), far-fetched, hard to do, unpleasant
苦心【くしん】
pains, hard work, effort, trouble, labour, labor
苦笑【くしょう】
bitter smile, wry smile, strained laugh, sarcastic laugh
苦笑い【にがわらい】
bitter smile, wry smile, forced smile, strained laugh
見苦しい【みぐるしい】
unsightly, ugly, unseemly, indecent, deplorable, disgraceful, shameful
辛苦【しんく】
hardship, toil, trouble
寝苦しい【ねぐるしい】
unable to sleep well
堅苦しい【かたくるしい】
formal, strict, ceremonious, stiff
重苦しい【おもくるしい】
heavy (feeling, etc.), gloomy (weather, etc.), oppressive (atmosphere, etc.), stifling, strained
苦しむ【くるしむ】
to suffer, to groan, to be worried
病苦【びょうく】
pain of sickness