Asymptomatic

//ˌeɪsɪm(p)təˈmætɪk// adj, noun

adj, noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    A person or an animal that exhibits no symptoms of disease.

    "After a 10-day observation period, group 1 was divided into subgroup 1A (symptomatics) and subgroup 1B (asymptomatics)."

  2. 2
    Preceded by the: people or animals that exhibit no symptoms of disease regarded collectively.

    "At the end of the observation period, those who are still symptomatic require second-line treatment, whereas the asymptomatic are discharged."

Adjective
  1. 1
    Not exhibiting any symptoms of disease, as for example in a case which is subclinical (“without signs detectable by physical examination or laboratory test”). not-comparable
Adjective
  1. 1
    having no symptoms of illness or disease wordnet

Synonyms

All synonyms
;nonsymptomaticsubpatentsymptomlesssymptomlesssymptomless

Example

More examples

"When someone is asymptomatic, they don't show any signs of being sick, but they have the virus and can spread it to others."

Etymology

PIE word *ḱóm The adjective is derived from a- (prefix meaning ‘not’) + symptomatic. The noun is derived from the adjective.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.