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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

“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

It was reported that she suffered from a debilitating infection known as the Epstein Barr virus, and from the chronic fatigue syndrome, ME.

From BBC • Sep. 5, 2025

Diagnosed with chronic fatigue syndrome, as well as Pots - a condition which causes dizziness - and hypermobility, she struggled with attendance and anxiety.

From BBC • Aug. 13, 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 Solomon, Steve