weaker

/wiːk/ (bre, ipa) · [wˈikɚ] /wiːk/ (ame, ipa) · [wˈikɚ] /ˈwēk How to pronounce weak (audio)/ (ame, mw)

weaker — adjective

  • weakerpositive
  • weakerercomparative
  • weakerestsuperlative

1. having less physical strength or power than is normal or expected, so that lifti

1.形容詞A2
釋義

having less physical strength or power than is normal or expected, so that lifting, carrying, or moving things is difficult

例句

After her surgery, Mira felt too weak to walk up the stairs by herself.

too + adj + to-infinitive

The old wooden chair had a weak leg that cracked under the weight of the books.

weak + noun (physical object)

同義詞
  • feeble

    more formal and suggests extreme weakness, often due to illness or age

  • frail

    emphasises thinness and fragility, especially in older people

  • powerless

    focuses on the inability to act rather than physical condition

反義詞
  • strong

    general opposite; having physical power

  • tough

    suggests durability and resistance to damage

常見錯誤

I feel weaked after exercise.
I feel weak after exercise.
💡'weak' is an adjective, not a verb; do not add -ed.

2. lacking the determination or confidence to make firm decisions or to resist pres

2.形容詞B1
釋義

lacking the determination or confidence to make firm decisions or to resist pressure or temptation from others

例句

The manager was too weak to stand up to the team's unreasonable demands.

too weak to [resist/stand up to]

A weak leader who avoids hard choices will quickly lose the respect of the group.

weak + leader / character

同義詞
  • spineless

    more informal and disapproving; suggests total lack of courage

  • timid

    focuses on shyness and lack of confidence rather than moral weakness

  • indecisive

    specifically about difficulty making decisions

反義詞

用法筆記

Often paired with nouns describing willpower or resolve, such as will, character, or spirit. Common in patterns like 'weak + enough to + verb' or 'too weak to + verb'.

常見錯誤

He has a weak heart' (meaning indecisive).
He has a weak will.
💡'weak heart' refers to a medical condition, not character.

3. not supported by good reasons or clear evidence, so that other people are unlike

3.形容詞B1
釋義

not supported by good reasons or clear evidence, so that other people are unlikely to accept or believe it

例句

His excuse for being late was so weak that nobody in the office believed it.

weak excuse / weak argument

The lawyer made a weak argument and the judge quickly ruled against her client.

同義詞
  • unconvincing

    more formal; directly states that something fails to persuade

  • flimsy

    informal; suggests the excuse or argument is obviously poor

  • lame

    informal and slightly disapproving; used for weak excuses

反義詞

用法筆記

Typically applied to things people say or write: arguments, excuses, reasons, evidence, or explanations. Not used for people directly (compare with sense 2).

常見錯誤

He is weak' (meaning his argument is unconvincing).
His argument is weak.
💡Use weak for the idea, not the person, when talking about reasoning.

4. made with so much water that the flavour is very mild and not at all strong

4.形容詞B1
釋義

made with so much water that the flavour is very mild and not at all strong

例句

The coffee at that café is so weak that it looks like brown water.

weak coffee / weak tea

Nikhil asked for a weaker tea because the strong caffeine kept him awake at night.

comparative: weaker + drink

同義詞
  • watery

    more negative; suggests there is too much water, ruining the taste

  • diluted

    more neutral; can describe any liquid made thinner by adding water

  • thin

    can be used for liquids but less common for drinks

反義詞
  • strong

    having a rich or intense flavour

用法筆記

Primarily used for hot and cold drinks (tea, coffee, juice, lemonade) where the balance of water to flavouring ingredients determines the taste. Not used for food texture or solid items.

常見錯誤

This soup is weak' (meaning watery).
This soup is watery / thin.
💡'weak' is only used for drinks, not for semi-solid foods like soup or sauce.

5. not reaching the expected level of skill, ability, or quality; falling short of

5.形容詞B1
釋義

not reaching the expected level of skill, ability, or quality; falling short of what is needed or required

例句

Matthew's math skills are weak, so he goes to extra tutoring twice a week.

weak [skill/ability] — subject + be + weak

The weakest player on the team missed three easy shots during the final game.

superlative: weakest + noun

同義詞
  • poor

    more direct and general; suggests a low standard

  • inadequate

    more formal; suggests not enough for the purpose

  • deficient

    formal; stresses that something important is missing

反義詞
  • strong

    showing good skill or high quality

  • competent

    having enough skill; adequate

用法筆記

Often precedes nouns describing academic subjects, skills, or performance areas (e.g. weak point, weak area, weak subject). Can also describe written work (essay, report, presentation).

常見錯誤

I am weak of English.
My English is weak.
💡Use possessive + noun as the subject, not 'I am weak of...'.

6. producing only a small number of ions when dissolved in water, and therefore not

6.形容詞C1
釋義

producing only a small number of ions when dissolved in water, and therefore not strongly acidic or alkaline

例句

Vinegar contains a weak acid that is safe to use in salad dressings at home.

weak acid / weak base / weak alkali

A weak base like baking soda can help neutralise the acid in your stomach.

反義詞
  • strong

    producing many ions; strongly acidic or alkaline

用法筆記

A technical term in chemistry. The opposite is 'strong' (of acids and bases). Learners at CEFR A1-B2 are unlikely to need this sense.

常見錯誤

A weak acid is not dangerous.
Some weak acids can still be dangerous
💡weakness refers to ionisation, not safety.' — The strength of an acid in chemistry does not measure how harmful it is.

7. describes a chin that is small and slopes backward instead of projecting forward

7.形容詞B2
釋義

describes a chin that is small and slopes backward instead of projecting forward from the face

例句

Anya has always felt self-conscious about her weak chin and avoids profile photos.

collocation: weak chin

The dentist said that a weak chin can make a person snore loudly at night.

同義詞
  • receding

    more specific — describes a chin that slopes back sharply; 'weak' is a gentler, broader term

  • small

    simpler word that focuses on size rather than shape; less precise for this sense

反義詞
  • strong

    a strong chin is large, square, and projects forward

  • prominent

    describes a chin that sticks out clearly, the opposite of receding

用法筆記

Only used to describe the shape of a chin — never for other facial features or personality traits.

常見錯誤

She has a weak nose.
She has a weak chin.
💡this sense of 'weak' only applies to the chin, not other parts of the face.

8. not having enough power, control, or authority to make others obey or follow you

8.形容詞B2
釋義

not having enough power, control, or authority to make others obey or follow your decisions

例句

After losing the election, the mayor was too weak to push new policies forward.

pattern: too weak to + infinitive

Ritu felt her position was weak because no senior member backed her ideas.

同義詞
  • powerless

    stronger and more absolute; suggests a complete lack of ability to act

  • ineffective

    focuses on the result — failing to produce the desired effect

  • feeble

    more negative and dismissive; often used to criticise

反義詞
  • powerful

    the direct opposite — having great influence and control

  • strong

    used for leaders or institutions that command respect and obedience

用法筆記

Frequently describes governments, leaders, committees, or positions of authority. Often followed by 'on' to state the issue where power is lacking.

常見錯誤

The team played weak.
The team played poorly.
💡'weak' is an adjective; use 'poorly' or 'badly' to describe how someone performs an action.

❌ 'She felt weak in the meeting.' (ambiguous) — clarify: 'She felt her argument was weak in the meeting' or 'She felt physically weak in the meeting.'

9. not strong, clear, or noticeable in physical qualities such as brightness, sound

9.形容詞B2
釋義

not strong, clear, or noticeable in physical qualities such as brightness, sound, taste, or smell

例句

The coffee tasted weak because Brian had used only one spoonful of ground beans.

pattern: weak-tasting [noun]

A weak signal on Dewi's phone meant she could not hear her brother calling.

collocation: weak signal

同義詞
  • faint

    more specific to things that are barely perceptible, like a sound or smell

  • dull

    suggests a lack of brightness, sharpness, or intensity; often used for pain or colour

  • diluted

    specifically for liquids that have been thinned with water or another substance

反義詞
  • strong

    the general opposite — applies to taste, light, sound, smell, and wind

  • intense

    suggests a high degree of strength in a sensory quality

用法筆記

Describes sensory qualities — sight (light, colour), sound (voice, signal), taste (drink, food), smell (odour), or physical force (wind, current). The opposite for most uses is 'strong'.

常見錯誤

His voice was weak so I turned up the volume.' — confusing 'weak' with 'quiet'; a weak voice lacks force or clarity, not just volume.
His voice was quiet so I turned up the volume.

10. describes a currency, stock, or economy that is falling or expected to fall in v

10.形容詞C1
釋義

describes a currency, stock, or economy that is falling or expected to fall in value relative to others

例句

Investors sold their shares quickly after the company released a weak quarterly report.

collocation: weak report / weak earnings

A weak yen helped Japanese car makers sell more vehicles in overseas markets.

collocation: weak [currency name]

同義詞
  • declining

    focuses on the downward movement; more dynamic, less judgmental

  • fragile

    suggests instability and the risk of further decline

  • bearish

    specifically describes investor sentiment expecting prices to fall; more technical

反義詞
  • strong

    a strong currency or market holds or gains value

  • robust

    suggests healthy, steady growth and resistance to downturns

用法筆記

Used mainly in financial and economic contexts. Common subjects: currencies (dollar, yen, euro), markets (stock, housing, bond), economic indicators (demand, growth, recovery). Opposite is 'strong'.

常見錯誤

The company's profits are weak this year.
The company's profits are low this year.
💡'weak' describes trend, performance, or relative value, not the absolute amount of profit.
I felt the economy is weak.
The economy is weak.
💡'weak' is an adjective describing the economy itself, not a feeling about it.