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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 definition: a secure or fortified place; stronghold. See examples of FASTNESS used in a sentence.
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 in British English. (ˈfɑːstnɪs ) noun. 1. a stronghold; fortress. 2. the state or quality of being firm or secure. 3. the ability of a dye to remain permanent and not run or fade.
Definition of fastness noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
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.
