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weakness

American  
[week-nis] / ˈwik nɪs /

noun

weaknesses plural
  1. the state or quality of being weak; lack of strength, firmness, vigor, or the like; feebleness.

    Synonyms:
    fragility
    Antonyms:
    strength
  2. an inadequate or defective quality, as in a person's character; slight fault or defect.

    to show great sympathy for human weaknesses.

    Synonyms:
    flaw
  3. a self-indulgent liking or special fondness, as for a particular thing.

    I've always had a weakness for the opera.

    Synonyms:
    appetite, hunger, passion, penchant
  4. an object of special desire; something very difficult to resist.

    Chocolates were her weakness.


weakness British  
/ ˈwiːknɪs /

noun

  1. the state or quality of being weak

  2. a deficiency or failing, as in a person's character

  3. a self-indulgent fondness or liking

    a weakness for chocolates

"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

weakness Idioms  

Synonym Usage

See fault.

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of weakness

First recorded in 1300–50; Middle English waikenes, weikenes. See weak, -ness

Explanation

The point where something fails to work properly or to hold up is its weakness. If a building crumbles in a storm, it's probably because of a weakness — a flaw or defect — in its structure. Weakness can indicate a physical weakness, like a chair with one wobbly leg, or flaw in an idea, like a plan for a lemonade stand that doesn't include any cups for serving the lemonade. People can show weakness too, when they are helpless to take action. The origin of weakness can be traced all the way back to its Proto-Indo-European root of weik, "to bend."

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Vocabulary lists containing weakness

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.

Weakness was especially prominent for those under 30 years of age, traditionally a more optimistic group, where sentiment fell to its lowest in two years.

From The Wall Street Journal • Jun. 19, 2026

Weakness began with a bearish engulfing candle and a harami on Sept. 11 and Sept. 23, respectively.

From Barron's • Apr. 14, 2026

Weakness in rival edible oils following the announcement also weighed on palm oil prices, Kenanga Futures says in a note.

From The Wall Street Journal • Apr. 9, 2026

Global superstar Burna Boy claimed the prestigious Album of the Year award for his latest work No Sign of Weakness.

From BBC • Jan. 12, 2026

The terrorists thought that they would change our aims and stop our. ambitions, but nothing changed in my life except this: Weakness, fear, and hopelessness died.

From "Malala: The Girl Who Stood Up for Education and Changed the World" by Malala Yousafzai

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