Skip to main content
serious illness

serious illness

13 3.0
A health problem that is very bad and may last a long time
  • noun
translation icon : enfermedad grave
  • You're dealing with a really serious illness and it brings up a lot of emotions.
  • cause serious illness
  • serious illness or injury
  • serious illness and death

Lennon had some serious illnesses, but he had never had a major stroke before.

Autoplay Next

Examples

  • Often, people with acute or serious illnesses cannot sustain full-time work—if they can work at all.

    Academic text (2005)
  • "Palliative care" is appropriate for anyone living with a serious illness, regardless of the prognosis," she said.

    Blog text (1)
  • We really are able to keep people alive through a serious illness and often get them back to their normal life.

  • Have you been receiving medical treatment for any serious illness?

  • The stress of losing a home was second only to death and serious illness in the family.

    Academic text (1992)
  • Most of the patients here suffer from serious illnesses, either stage 2 or 3.

  • Wiman is referring to his struggle with a serious illness.

    Academic text (2012)
  • Bluetongue viruses can cause serious illness and death in sheep.

    Academic text (1999)
  • If one survives a serious illness, one feels overwhelmingly grateful.

    Fiction book (2001)
  • Have you been receiving medical treatment for any serious illness?

Synonyms

catastrophic illness
vsserious illness
  • Specialized
1 4.9

A very serious illness that needs long hospital care and costs a lot

is a grave condition likely to cause significant or lasting health effects

Antonyms

63 3.4

A small illness that often lasts a long time

How Severe

fatal
224 3.7
intensive care
  • Specialized
50 3.0
serious illness
13 3.0
corona
  • Neologism
1 4.1
mild
107 1.0
asymptomatic
  • Specialized
5 5.6

Surface Forms

illness singular
illnesses plural

Morphology

serious + illness

The meaning 'a grave or severe health condition' is directly and compositionally derived from the adjective 'serious' (severe, grave) modifying the noun 'illness' (a health condition), so no idiomatic shift is required. This adjective+noun pattern is common cross-linguistically and follows standard English composition, so a B1 learner who knows both words will readily understand the phrase.

Etymology

Serious illness joins serious, meaning 'very important or dangerous', and illness, meaning 'sickness'. It creates the image of a sickness that is strong and life-changing, so the phrase means a health problem that needs real care.