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Synonyms

severe

American  
[suh-veer] / səˈvɪər /

adjective

severer, severest
  1. harsh; unnecessarily extreme.

    severe criticism; severe laws.

    Antonyms:
    tolerant, lax, lenient
  2. serious or stern in manner or appearance.

    a severe face.

    Synonyms:
    grim, forbidding, dour, austere, austere, punitive, draconian, rigorous, rigid, heavy-handed, strict
    Antonyms:
    temperate, mild, benign, gentle
  3. threatening a seriously bad outcome or involving serious issues; grave.

    a severe illness.

  4. rigidly restrained in style, taste, manner, etc.; simple, plain, or austere.

    Synonyms:
    stark, serious, spartan
  5. causing discomfort or distress by extreme character or conditions, as weather, cold, or heat; unpleasantly violent, as rain or wind, or a blow or shock.

  6. difficult to endure, perform, fulfill, etc..

    a severe test of his powers.

  7. rigidly exact, accurate, or methodical.

    severe standards.

    Synonyms:
    exacting, demanding
    Antonyms:
    facile, effortless, easy

severe British  
/ sɪˈvɪə, sɪˈvɛrɪtɪ /

adjective

  1. rigorous or harsh in the treatment of others; strict

    a severe parent

  2. serious in appearance or manner; stern

  3. critical or dangerous

    a severe illness

  4. causing misery or discomfort by its harshness

    severe weather

  5. strictly restrained in appearance; austere

    a severe way of dressing

  6. hard to endure, perform, or accomplish

    a severe test

  7. rigidly precise or exact

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See stern 1.

Other Word Forms

  • oversevere adjective
  • oversevereness noun
  • severely adverb
  • severeness noun
  • supersevere adjective
  • supersevereness noun
  • unsevere adjective
  • unsevereness noun

Etymology

Origin of severe

First recorded in 1540–50; from Latin sevērus, or back formation from severity

Explanation

Whether you're talking about a punishment, the weather, or how bad your flu is, severe indicates that it's at the limit of the spectrum. The austerity of a word like severe serves many purposes. The common usage is to describe tough or painful stuff, like icy snowstorms, merciless punishments, or grim conditions (e.g., a severe depression). If things are severe, they're serious. Severe could also describe a person's haircut if it's brutally short and angular, or their wardrobe if it tends to be all black with no flourishes.

Keep Reading on Vocabulary.com

Vocabulary lists containing severe

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.

The war, however, had a less severe impact on inflation than economists anticipated.

From Barron's • Apr. 10, 2026

In both Vietnam and Myanmar, shortages have been so severe that airlines have slashed operations, while foreign carriers have added fuel stops outside those countries to ensure they can fly back out.

From The Wall Street Journal • Apr. 10, 2026

The frequency and cost of climate-influenced disasters, including severe storms, drought and flooding, continues to mount — between $350 billion and $450 billion in each of the last three years — stretching government budgets.

From Salon • Apr. 10, 2026

“Our most significant accomplishment was restoring our health plan to a sustainable path after facing severe pressure from industry contraction and runaway healthcare cost inflation.”

From Los Angeles Times • Apr. 9, 2026

The air felt like it did before a severe thunderstorm: alive with unimaginable power.

From "City of the Plague God" by Sarwat Chadda