thinness

/ˈθɪnnəs/ (bre, ipa) · [θˈɪnnɪs] /ˈθɪnnəs/ (ame, ipa) · [θˈɪnnɪs] /ˈthinnə̇s How to pronounce thinness (audio)/ (ame, mw)

thinness — noun

1. the condition of someone's body weighing very little, so that their bones show o

1.名詞B1
釋義

the condition of someone's body weighing very little, so that their bones show or can be felt under the skin

例句

Priya's thinness worried the school nurse, who called her parents that afternoon.

thinness + worried — often signals a health concern

The vet mentioned the thinness of the rescued fox to every volunteer.

同義詞
  • slimness

    more positive; suggests an attractive, healthy leanness

  • skinniness

    more informal and often negative; implies an unattractive lack of flesh

  • leanness

    suggests a fit, muscular lack of fat, often from exercise or diet

反義詞
  • fatness

    the direct opposite; informal and blunt

  • plumpness

    a softer, rounder body type, often neutral or mildly positive

文法句型

the thinness of + person/animal

用法筆記

Often used in medical or health contexts. Can carry a negative tone when describing people (suggesting illness or malnutrition), but may be neutral when referring to a natural body type.

常見錯誤

Her thinness is very beautiful.
Her slim figure is very beautiful.
💡'thinness' often suggests being too thin in a worrying way; 'slimness' or 'slenderness' has a positive tone.

2. the quality of a flat object — such as a phone, a credit card, or a sheet of pap

2.名詞B1
釋義

the quality of a flat object — such as a phone, a credit card, or a sheet of paper — having very little depth when measured from one side to the other

例句

Sofia admired the phone's thinness when it slid easily into her pocket.

thinness of manufactured objects — often positive

Amara tested the thinness of the ice with her boot before stepping forward.

同義詞
  • slenderness

    used for objects that are long as well as thin, like a pencil or a column

  • fineness

    suggests delicate, high-quality thinness, e.g. fine hair or gold thread

反義詞

文法句型

the thinness of + physical object

用法筆記

Used for physical objects, not for people or abstract ideas. Common with materials, sheets, layers, and manufactured items.

3. the fact that something contains very few people or very little of what you woul

3.名詞B2
釋義

the fact that something contains very few people or very little of what you would normally expect — for example, only a handful of people turning up at a concert, or a story that skips over important details

例句

Fatima was struck by the thinness of the crowd at the evening concert.

The judge dismissed the case against Tariq, citing the thinness of the evidence — a single blurry photograph.

thinness of evidence — common collocation in legal contexts

同義詞
  • sparseness

    closer match for physical distribution; 'thinness of hair' ≈ 'sparseness of hair'

  • scarcity

    focuses on shortage rather than low density; 'scarcity of food' is about lack, not thinness

反義詞

文法句型

the thinness of + crowd/evidence/traffic/detail

用法筆記

Typically followed by 'of' plus a noun describing something measurable: crowd, traffic, evidence, detail. The noun must be something that can be dense or sparse, not a physical depth.

常見錯誤

The thinness of the river worried the farmers.
The shallowness of the river worried the farmers.
💡'thinness' refers to density or scarcity, not depth. A river can be shallow but is never described as thin.

4. the lack of substance or strength in an argument, excuse, story, or explanation

4.名詞B2
釋義

the lack of substance or strength in an argument, excuse, story, or explanation that makes it fail to convince anyone

例句

The thinness of Marco's excuse made the manager shake his head and demand the truth.

thinness of excuse — describing a weak justification

Yara leaned over and muttered about the thinness of the sales pitch after three empty slides.

同義詞
  • weakness

    broader; can apply to people, structures, and arguments equally

  • flimsiness

    suggests something easily disproved or seen through, like a bad excuse

  • shallowness

    focuses on lack of depth or thought, e.g. a shallow argument with no real ideas

反義詞

文法句型

the thinness of + excuse/argument/plot/explanation

用法筆記

Almost always used with abstract nouns: excuse, argument, plot, explanation, apology. The thing described must be an attempt to persuade, convince, or satisfy.

常見錯誤

The thinness of the chair made it uncomfortable to sit on.
The flimsiness of the chair made it uncomfortable to sit on.
💡'thinness' for poor quality only applies to ideas, arguments, or creative works, not physical sturdiness.

5. the quality of a liquid that makes it flow very easily, usually because too much

5.名詞B2
釋義

the quality of a liquid that makes it flow very easily, usually because too much water has been added and not enough solid ingredients remain

例句

The thinness of the soup told Akira the cook had added too much water.

thinness of soup/sauce — signalling too much liquid

The chef checked the thinness of the sauce before taking the pan off the heat.

同義詞
  • wateriness

    more specific; always negative and refers to too much water content

  • fluidity

    neutral; describes how easily a liquid flows without judging whether it should be thicker

反義詞

文法句型

the thinness of + liquid/sauce/paint/soup

用法筆記

Common in cooking and painting contexts. The liquid being described is usually something that should normally be thicker — soup, sauce, batter, paint, or coffee.

6. the condition of air when it has far less oxygen than the air people normally br

6.名詞B2
釋義

the condition of air when it has far less oxygen than the air people normally breathe, making it harder to take in enough with each breath and often found at high altitudes

例句

The thinness of the air at the mountain summit left Kwame panting for several minutes.

thinness of the air at altitude — linked to breathing difficulty

The pilot warned about the thinness of the air before the passengers removed their masks.

同義詞
  • rarefaction

    technical physics term for reduced air density; not for everyday conversation

反義詞
  • density

    of air; a more scientific term

文法句型

the thinness of the air

用法筆記

Used almost exclusively for high-altitude settings. 'Thin air' is the more common everyday collocation, but 'the thinness of the air' is the equivalent noun phrase.