fastness

IPA/ˈfɑːstnəs/
KK[fˈæstnəs]IPA/ˈfæstnəs/

fastness — 名詞

  • fastnesssingular
  • fastnessesplural

1. the degree to which something is fixed tightly enough to stay secure instead of

1.名詞C2
釋義

牢固性

固定穩當、不易鬆脫的性質

the degree to which something is fixed tightly enough to stay secure instead of working loose

例句

Daichi tested the fastness of the bolts before opening the bridge to traffic.

Daichi 在開放這座橋通車前，先測試螺栓的牢固性。

fastness of [something] for secure fixing

Eve worried about the fastness of the baby's car seat on the long drive.

Eve 在長途開車前，很擔心嬰兒安全座椅的牢固性。

常見搭配
  • test the fastness of
  • check the fastness of
  • fastness of the bolts
  • fastness of a rope
同義詞
  • firmness

    broader everyday word for something that feels solid or does not give way easily

  • fixedness

    closest formal equivalent; stresses staying in one set position

  • security

    broader and often about safety rather than physical attachment

反義詞

文法句型

fastness of [something]

用法筆記

Usually appears in formal descriptions of how firmly an object is fixed in place. Use it for attachment or secure fixing, not for general emotional or political stability.

常見錯誤

The ladder's fastness kept it from shaking.
The ladder's stability kept it from shaking.
'fastness' is about firm attachment or fixing, not general steadiness or balance.

2. a refuge in a place that enemies cannot easily reach or attack

2.名詞C2
釋義

險固之地

難以接近或攻破的安全藏身處

a refuge in a place that enemies cannot easily reach or attack

例句

During the civil war, villagers fled to a mountain fastness above the valley.

內戰期間，村民逃往山谷上方的一處山中險固之地。

pattern: mountain / island / forest fastness

The rebels stored food and medicine in a forest fastness beyond the main road.

叛軍把食物和藥品藏在主要道路外的一處森林險固之地。

常見搭配
  • mountain fastness
  • forest fastness
  • island fastness
  • retreat to a fastness
同義詞
  • stronghold

    very close in meaning; often used for defended places controlled by a group

  • refuge

    broader and less military; focuses on safety rather than defence

  • hideout

    more informal and stresses secrecy rather than strength

文法句型

a fastness in/on [place]

retreat to a fastness

用法筆記

Usually literary or historical. It often refers to a mountain, island, forest, or fortress-like refuge that enemies cannot reach easily.

常見錯誤

The hotel was a fastness near the beach.
The hotel was a refuge near the beach.
'fastness' suggests a place that is hard to reach or defendable, not just any safe place.

3. the quality of moving or happening very quickly

3.名詞C2
釋義

迅捷

快速移動或發生的狀態

the quality of moving or happening very quickly

例句

The hawk's fastness let it seize the rabbit before it reached the hedge.

那隻鷹的迅捷讓牠在兔子鑽進樹籬前就抓住了牠。

fastness of an animal's movement

Jabari admired the fastness of the young runner over the final hundred metres.

Jabari 很欣賞那位年輕跑者在最後一百公尺展現出的迅捷。

常見搭配
  • fastness of the river
  • fastness of a runner
  • the fastness with which
  • admire the fastness of
同義詞
  • swiftness

    closest modern word for quick movement

  • rapidity

    formal word for quick movement or quick development

  • speed

    everyday choice; often also covers measured rate

反義詞

文法句型

fastness of [movement/process]

with [adjective] fastness

用法筆記

This sense is rare and old-fashioned. Modern English normally uses 'speed', 'swiftness', or 'rapidity' instead.

常見錯誤

The car reached a fastness of 120 kilometres per hour.
The car reached a speed of 120 kilometres per hour.
this sense means swiftness in general, not a measured rate in modern usage.

同根字