Fastness

Definition:

(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.

Compare fastness with other words:

fastness vs. fatness

fastness vs. vastness

fastness vs. gastness

castle vs. fastness

fading vs. fastness

dye vs. fastness

fastness vs. swiftness

fastness vs. rapidity

fastness vs. security

fastness vs. firmness

fastness vs. fortress

fastness vs. stronghold