1. fastness

noun. ['ˈfæstnəs'] a rate (usually rapid) at which something happens.

Rhymes with Fastness

• vastness

Sentences with fastness

1. Noun, singular or mass
Use a sample of the leather to test for color fastness if you can.

2. fastness

noun. ['ˈfæstnəs'] the quality of being fixed in place as by some firm attachment.

3. fastness

noun. ['ˈfæstnəs'] a strongly fortified defensive structure.