English Reference

Word

severity

Phoneticssever·i·ty

US/sɪˈvɛɹɪti/

UK/səvˈɛɹɪti/

Definitions

01seriousness of a problem

B2 · Upper Intermediate Uncountable noun

n. how serious or bad a problem, illness, or situation is.

n. the degree of intensity or seriousness of something undesirable, such as a disease, weather event, or economic crisis.

“The severity of the storm surprised everyone, as it caused a lot of damage to the houses.”

“Medical professionals were concerned by the severity of the outbreak, noting that symptoms progressed much faster than in previous years.”

Usage

often used with the preposition 'of' followed by the problem.

Antonyms

mildness

02strictness or harshness

C1 · Advanced Uncountable noun Formal

n. the quality of being very strict or harsh in the way you treat people.

n. the quality of being stern, austere, or harsh in treatment or judgement.

“The teacher was known for the severity of her rules, but the students respected her.”

“The severity of the sentence handed down by the judge sparked a national debate regarding the proportionality of the legal system.”

Usage

uncountable in this sense.

Synonyms

harshnessstrictnessrigour

Antonyms

leniencekindness

03plainness or lack of decoration

C2 · Proficiency Uncountable noun Literary

n. a style that is very simple and plain, without any decoration.

n. the quality of being extremely plain or simple in style or appearance; austerity.

“The severity of the building's design made it look cold and unfriendly.”

“The architect favoured a certain severity in his work, stripping away all ornamental flourishes to focus on raw concrete and sharp angles.”

Synonyms

Antonyms

ornatenessdecoration

Collocations

Common phrases and expressions where native English speakers use the word “severity” in context.

Verb

01. assess the severity

“Doctors need to assess the severity of the injury before deciding on a treatment.”

verb + noun

02. reduce the severity

“Taking the medication early can help reduce the severity of the symptoms.”

verb + noun

03. underestimate the severity

“We should not underestimate the severity of the economic crisis.”

verb + noun

Adjective

04. extreme severity

“The judge noted the extreme severity of the crime during the sentencing.”

adj + noun

05. varying severity

“The patients experienced headaches of varying severity throughout the week.”

adj + noun

Noun

06. degree of severity

“The punishment should be based on the degree of severity of the offense.”

noun + of + noun

Preposition

07. in severity

“The storms increased in severity as they moved across the coast.”

prep + noun

08. severity assess

Real-World Examples

“The benefits were seen across a wide variety of patients, including people with different levels of disease severity and different body types.”
ScienceDaily 1 Sept 2026
“The overall crime severity index, while it dropped by 4.9% in 2025 compared to 2024, it was up 6.6% from 2015 to 2025.”
Toronto Sun 15 Aug 2026

Etymology

From Middle English severity, from Middle French severite (modern French sévérité), from Latin sevēritās. By surface analysis, severe + -ity.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

severity(B2)

ADJECTIVE

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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