Definitions

weakness

[week-nis] / ˈwik nɪs /

NOUN

defect, proneness

Synonyms

STRONGEST

deficiency failing flaw fragility frailty gap instability lack lapse shortcoming vulnerability

STRONG

appetite blemish debility decrepitude delicacy enervation faintness fault feebleness fondness impairment imperfection impotence inclination inconstancy indecision infirmity invalidity irresolution languor liking passion penchant powerlessness predilection proclivity prostration senility taste vice vitiation

WEAK

Achilles heel chink in armor soft spot sore point

Antonyms

STRONGEST

advantage perfection strength strong point success

STRONG

ability health robustness soundness

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.

One additional factor upsetting investors of late has been the continual weakness of the Korean currency USDKRW.

From MarketWatch • Jun. 9, 2026

Such weakness would also hurt the U.S. in nuclear talks.

From The Wall Street Journal • Jun. 8, 2026

He added that today’s rebound is “a sign investors viewed last week’s weakness as a reset in crowded trades rather than the start of a broader risk-off move.”

From Barron's • Jun. 8, 2026

The weakness in the home market was weighed primarily by a surge in oil prices that eroded demand for fuel-powered vehicles, the agency said.

From The Wall Street Journal • Jun. 8, 2026

Somehow infect me with the weakness I perceived in her?

From "Jacob Have I Loved" by Katherine Paterson

Vocabulary lists containing weakness

Florida's B.E.S.T. Common Suffixes: -ness

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Unit 1, Week 4

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The Suffix -ness, Part 1

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