fastness
0 antonyms and opposites of fastness, grouped by meaning.
Noun — The quality or state of being fast (in various senses).
We haven't recorded synonyms for fastness yet. You can still read its full definition, where it comes from, or words that rhyme with it.
Etymology
From Middle English fastnes, fastnesse (“immovableness, stability; firmness, solidness; secure attachment; constancy; obstinacy; something giving firmness or strength; of sleep: soundness; of a wound: healing; assurance, confirmation”) [and other forms], from Old English fæstnes (“fastness, firmness, stability; resolut...
Full origin of fastness →