sickness

1 the condition of not being in good health she was plagued by sickness most of her adult life Synonyms illness, indisposition, unhealthiness, unsoundness Related Words malaise, sickishness; affliction, ailment, condition, disease, disorder, dysfunction (also disfunction), malady, trouble, upset; debility, decrepitude, feebleness, frailness, infirmity, invalidism, invalidity, lameness, sickliness, weakliness, weakness; hypochondria Near Antonyms comeback, convalescence, healing, mending, rally, recovery, recuperation, rehab, rehabilitation, snapback; fettle, fitness, shape; hardiness, heartiness, lustiness, robustness, ruggedness, stamina, strength, toughness, vigor, vigorousness, vitality; bloom, flush, flushness; weal, welfare, well-being Antonyms health, healthiness, soundness, wellness, wholeness, wholesomeness

2 an abnormal state that disrupts a plant or animal's normal bodily functioning a sickness that resulted in the death of millions of the nation's elm trees Synonyms affection, ail, ailment, bug, complaint, complication, condition, disorder, distemper, distemperature, fever, ill, illness, infirmity, malady, disease, troubleRelated Words contagion, contagious disease; contagium, infection; attack, bout, fit, spell; debility, decrepitude, feebleness, frailness, lameness, sickliness, unhealthiness, unsoundness, unwellness, weakness; malaise, matter, pip; epidemic, pest, pestilence, plagueNear Antonyms fitness, healthiness, heartiness, robustness, soundness, wholeness, wholesomeness; fettle, shapeAntonyms health, wellness

3 a disturbed condition of the stomach in which one feels like vomiting the sickness that women typically feel upon rising during the early months of a pregnancy Synonyms nauseousness, qualmishness, queasiness, queerness, nausea, squeamishnessRelated Words qualm; airsickness, altitude sickness, car sickness, morning sickness, motion sickness, mountain sickness, seasickness