Definitions

chronic fatigue syndrome

NOUN

disorder involving extreme fatigue and weakness

Synonyms

WEAK

chronic fatigue and immune dysfunction syndrome fatigue disease fatigue syndrome myalgic encephalomyelitis post-viral fatigue syndrome postviral syndrome yuppie flu

Example Sentences

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chronic fatigue syndrome

Healthy individuals had more of these bacteria than people with conditions such as inflammatory bowel disease, obesity, and chronic fatigue syndrome.

From Science Daily ● Feb. 14, 2026

Katie Livings has chronic fatigue syndrome which causes exhaustion, headaches and sensitivity to light.

From BBC ● Nov. 5, 2025

“You’re a kid and you have no authority over anyone,” said Lily, who has POTS, EDS, chronic fatigue syndrome, and chronic pain.

From Slate ● Sep. 15, 2025

Hazel Stinson, 49, from Kent, suffers from chronic fatigue syndrome and was last able to visit the GP for a cervical screening six years ago.

From BBC ● Jun. 23, 2025

There are eating disorders, shingles, skin problems, kidney disease, Alzheimer's, senility, mental illness, addictions, chronic fatigue syndrome, aids.

From How and When to Be Your Own Doctor by Steve Solomon