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- Dictionaryfastness/ˈfɑːs(t)nəs/
noun
- 1. a secure place well protected by natural features: "a remote Himalayan mountain fastness"
- 2. the ability of a material or dye to maintain its colour without fading or washing away: "the dyes differ in their fastness to light"
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Fastness is the quality or state of being fast, such as fixed, swift, or colorfast. It can also mean a fortified or secure place or a remote and secluded place.
Fastness can mean how fast something is, or a safe place, such as a fortress. Learn more about the meaning, pronunciation and usage of fastness with examples and translations.
Fastness can mean how fast something is or how fixed it is, or a safe place, such as a fortress. Learn more about the word, its pronunciation, synonyms and usage with examples from the Cambridge Dictionary.
Fastness definition: a secure or fortified place; stronghold. See examples of FASTNESS used in a sentence.
Fastness can mean a secure place, a state of being firm or rapid, or the ability of a dye to remain permanent. Find synonyms, antonyms, and translations of fastness in Spanish, German, and Italian.
A fastness is a place, such as a castle, which is considered safe because it is difficult to reach or easy to defend against attack. [ literary ] They could have withdrawn into the mountain fastness of Eryri.
Definitions of fastness. noun. a rate (usually rapid) at which something happens. synonyms: speed, swiftness. see more. noun. the quality of being fixed in place as by some firm attachment. synonyms: fixedness, fixity, fixture, secureness. see more.
