Words that Rhyme with fastness
2 Syllable Words
vastness
3 Syllable Words
lightfastness, steadfastness
Definitions of fastness
a. The state of being fast and firm; firmness; fixedness; security; faithfulness.
a. A fast place; a stronghold; a fortress or fort; a secure retreat; a castle; as, the enemy retired to their fastnesses in the mountains.
a. Conciseness of style.
a. The state of being fast or swift.