Thesaurus

illness

noun

Synonyms and Antonyms of illness

  1. 1 an abnormal state that disrupts a plant's or animal's normal bodily functioning suffered from a mysterious illness that left her weak and tired all the time Synonyms affection, ail, ailment, bug, complaint, complication, condition, disorder, distemper, distemperature, fever, ill, disease, infirmity, malady, sickness, 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

  2. 2 the condition of not being in good health prone to illness as a child, he was sent to a western ranch with the expectation that it would toughen him up Synonyms sickness, indisposition, unhealthiness, unsoundnessRelated 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; hypochondriaNear 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-beingAntonyms health, healthiness, soundness, wellness, wholeness, wholesomeness


Learn More about illness


Seen and Heard

What made you want to look up illness? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

acid in temper, mood, or tone

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!