Dictionary
fastness
noun fast·ness \ˈfas(t)-nəs\
: a place that is difficult to get to or that can be easily defended if it is attacked
Full Definition of FASTNESS
1
: the quality or state of being fast: as a : the quality or state of being fixed b : the quality or state of being swift c : colorfast quality d : resistance (as of an organism) to the action of a usually toxic substance
2
a : a fortified or secure place b : a remote and secluded place <vacationed in their mountain fastness>
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First Known Use of FASTNESS
before 12th century
Related to FASTNESS
Rhymes with FASTNESS
Medical Dictionary
fastness
noun fast·ness \ˈfas(t)-nəs\
Medical Definition of FASTNESS
: 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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