Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

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).

WORD OF THE DAY

February 9, 2016

marked by high spirits and laughter

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

pince-nez duvet kittly-benders spindrift
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ