fastness

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noun fast·ness \ˈfas(t)-nəs\

Definition of fastness

  1. 1 :  the quality or state of being fast: such asa :  the quality or state of being fixedb :  the quality or state of being swiftc :  colorfast qualityd :  resistance (as of an organism) to the action of a usually toxic substance

  2. 2a :  a fortified or secure placeb :  a remote and secluded place vacationed in their mountain fastness

Examples of fastness in a Sentence

  1. the amazing fastness with which the boy took his shower had us wondering if he'd used any water

  2. the guerillas retreated to their network of hidden fastnesses deep within the mountains

First Known Use of fastness

before 12th century


FASTNESS Defined for English Language Learners

fastness

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noun

Definition of fastness for English Language Learners

  • : a place that is difficult to get to or that can be easily defended if it is attacked


Medical Dictionary

fastness

play
noun fast·ness \ˈfas(t)-nəs\

Medical Definition of fastness

  1. :  resistance (as of an organism) to the action of a usually toxic substance streptomycin fastness developed by a strain of tubercule bacillus



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