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Definitions

weak

[week] / wik /

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not strong adj.
cowardly adj.
faint, soft adj.
deficient, feeble adj.
exposed, vulnerable adj.
watered-down adj.

ADJECTIVE

not strong

Synonyms

STRONGEST

anemic feeble fragile frail hesitant powerless shaky sickly sluggish uncertain unsteady weakened wobbly

WEAK

debilitated decrepit delicate effete enervated epicene exhausted faint flaccid flimsy forceless impuissant infirm insubstantial irresolute lackadaisical languid languorous limp makeshift out of gas prostrate puny rickety rocky rotten senile spent spindly supine torpid undependable unsound unsubstantial wasted wavering weakly

Antonyms

STRONGEST

healthy hearty powerful stable strong unbreakable

WEAK

capable fit potent

ADJECTIVE

cowardly

Synonyms

STRONGEST

hesitant indecisive ineffectual insecure nervous powerless shaky soft uncertain unstable wobbly

WEAK

faint-hearted fluctuant frightened impotent infirm irresolute nerveless spineless timorous undependable unreliable unsure vacillating wavering weak-kneed wimpy wishy-washy zero

Antonyms

WEAK

bold brave confident

ADJECTIVE

faint, soft

Synonyms

STRONGEST

dull feeble low poor quiet small thin

WEAK

bated dim distant gentle imperceptible inaudible indistinct muffled pale reedy slight stifled unaccented unstressed whispered

Antonyms

WEAK

loud noisy

ADJECTIVE

deficient, feeble

Synonyms

STRONGEST

immature inadequate incomplete ineffective ineffectual inept lacking limited poor shaky slim small thin

WEAK

faulty flabby flimsy forceless green hollow implausible impotent improbable incompetent inconceivable inconclusive incredible invalid pathetic raw shallow slight spineless substandard thick unbelievable unconvincing unprepared unqualified unsatisfactory unsubstantial unsure untrained wanting

Antonyms

STRONGEST

able adequate competent enough strong sufficient

WEAK

capable fit potent

ADJECTIVE

exposed, vulnerable

Synonyms

WEAK

accessible assailable defenseless helpless indefensible unguarded unprotected unsafe untenable wide-open woundable

Antonyms

WEAK

able fit guarded potent protected safe secure

ADJECTIVE

watered-down

Synonyms

STRONGEST

thin

WEAK

dilute diluted insipid milk-and-water runny tasteless washy waterish watery wishy-washy

Antonyms

WEAK

concentrated potent strong thick

Frequently Asked Questions

What is another word for weak?

Weak means not strong. A synonym for weak in the context of physical strength is feeble. A person might also be considered weak as in cowardly or easily defeated. Something that can easily break can be described as fragile or delicate. When a sick or very tired person says they feel weak, it means they have no energy. A person who’s very ill and generally weak in this way might be described as frail. When weak means lacking in force, effectiveness, or support, synonyms are ineffectual and poor, as in That’s a weak/poor excuse. In the context of sounds, weak is used to mean faint, soft, and quiet. A weak sound might be one that’s indistinct, thin, or muffled. A very informal slang term that can mean the same thing as weak is weak sauce. To become weak is to weaken. A specific way of being weak is a weakness. Other terms for this are weak point, vulnerability, and soft spot. These terms often suggest a flaw that can allow someone or something to be defeated, attacked, exploited. An expression that means this is Achilles heel.

What is the opposite (antonym) of weak?

The direct and commonly used opposite of weak is strong. Strong can be used as the opposite of weak in most contexts, such as a person’s physical strength, the effectiveness of an argument, the flavor of a drink, etc. Other antonyms for weak include hearty and healthy (when weak means ill or frail), bold and brave (when weak means cowardly), and loud (when weak means faint or quiet).

How do you spell weak?

Weak as in lacking strength is spelled with ea. Week as in the period of seven days is spelled with ee. You can remember this because seven also has two e’s.

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.

See Examples For:

weak weaker weakest

During the start to the week, the jet stream will be relatively weak and loop to the north of the UK, allowing higher pressure to develop and a warm south-westerly airflow to take hold.

From BBC ● Sep. 14, 2026

"Critics' reviews are weak like they were the first time, but the audience score is very good," said industry watcher David A. Gross.

From Barron's ● Sep. 13, 2026

The 30-year home loan has moved even higher in September, setting the stage for another weak month for home sales.

From MarketWatch ● Sep. 10, 2026

“Unless the data are very weak, I didn’t think there was any way the Fed wasn’t going to hike in September,” he said.

From The Wall Street Journal ● Sep. 10, 2026

“He looks weak as a sickly lamb,” I observed, folding and refolding my napkin and pretending to be absorbed in my place setting.

From "The Detective's Assistant" by Kate Hannigan

But several big shows are not represented - viral sensation Heated Rivalry is not eligible for the Emmys, while there is a weaker presence for the final series of Euphoria and Stranger Things.

From BBC ● Sep. 13, 2026

The team also observed weaker interactions between genes and nearby regulatory elements that normally help control whether those genes are switched on or off.

From Science Daily ● Sep. 13, 2026

“This is something that we’re watching very closely that might actually translate into weaker economic growth” for the rest of 2026 and into next year, Chowdhury added.

From MarketWatch ● Sep. 10, 2026

Lower growth assumptions and weaker stocks would enhance the appeal of bonds, says equity-market strategist and “Flow Show” author.

From The Wall Street Journal ● Sep. 8, 2026

She gave a weak smile to Kelly, an even weaker smile to George, then stepped offstage.

From "George" by Alex Gino

In fact, it would be no surprise if the Azerbaijani champions were by some distance the weakest of the eight league stage opponents Michael Carrick's side will come up against.

From BBC ● Sep. 10, 2026

"September is often tough, historically the weakest for Wall Street," said Neil Wilson at Saxo Markets.

From Barron's ● Sep. 10, 2026

The moves turned the Rams’ weakest link into one of their strongest.

From Los Angeles Times ● Sep. 8, 2026

Last week, Walmart reported its weakest quarterly comparable sales growth in over six years.

From The Wall Street Journal ● Aug. 23, 2026

They would bring the siege tower from out of the cover of Mossflower Wood and wheel it to a part of the wall where the defense appeared weakest.

From "Redwall" by Brian Jacques

weak

Frequently Asked Questions

Example Sentences

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