The word “fastness” has 2 syllables: fast-ness
It's pronounced as /ˈfæst.nəs/
What is synonym and antonym for fastness?
In the thesaurus, “fastness” has 79 synonyms and 29 antonyms.
Here are synonyms and antonyms for fastness along with examples of usage in sentences.
On this page you'll find 108 synonyms, antonyms, or another words to fastness, such as: acceleration, adhesion, affection, alacrity, alcazar, alienation, allegiance.
Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.