Skip to main content
fastness

fastness

1 8.4
Firm and stable quality that keeps something from moving or breaking
  • noun
  • /ˈfæstnəs/
translation icon : firmeza
  • The painter only uses high-quality materials to guarantee the light fastness of his artwork.
  • color fastness

A horse is called good through another because it's fast strength, fastness.

Examples

  • Today we're going to test the light fastness of a bunch of different ink brands.

  • Isolated in the mountain fastnesses of eastern Anatolia, the Kurds simply had forgotten their mother tongue.

    Academic text (2004)
  • Additionally, hemp, due to its extreme durability and color-fastness, was used for 80% of all paper in the world, including Bibles, newspapers, maps, and paper money.

    Blog text (5)
  • We need to evaluate the color fastness of the fabric to ensure it doesn't fade after washing.

  • When choosing paint for the exterior of your house, consider its fastness to sun exposure and weather.

Synonyms

rigidity
vsfastness
  • Specialized
3 6.0

Not able to bend or change shape easily

differs by stressing resistance to change, not physical inflexibility
firmness
vsfastness
1 3.0

Being steady and held in one place without moving

highlights general resistance to change and external pressure
fixity
vsfastness
  • Formal
1 8.6

A state in which something does not move or change

covers stability plus resistance to fading or external pressure
fixedness
vsfastness
7.8

Being firmly held in place so it does not move or change

is broader, focusing on resisting change, fading, or pressure
stableness
vsfastness
5.6

A person or thing that stays firm and steady and does not change easily

emphasizes also resistance to fading and pressure beyond steadiness
secureness
vsfastness
5.5

How firmly something is fixed in place

is broader, stressing resistance to change or fading, not just attachment

Antonyms

114 5.1

A situation that changes easily and can fail, for example in politics

17 5.2

Something that is easy to break or damage, like glass

How Firm

fastness
1 8.4
durability
22 3.8
stability
363 3.1
steadiness
4 3.6
weakness
133 1.4
flimsiness
1 4.4

Surface Forms

fastness singular
fastnesses plural

Morphology

fastness = fast (transparent) = fast + ness

The suffix '-ness' forms a noun indicating the quality or state of being fast.

Etymology

The word fastness comes from the old word fast meaning 'firm' or 'fixed' and the ending -ness that makes a quality. Think of fasten ('to make secure'): fastness is the quality of staying firm and not moving, like roots or an anchor holding something in place.