Definitions for: Fastness

[n] a strongly fortified defensive structure
[n] the quality of being fixed in place
[n] a rate (usually rapid) at which something happens; "the project advanced with gratifying speed"

Webster (1913) Definition: Fast"ness, n. [AS. f[ae]stnes, fr. f[ae]st fast. See
Fast, a.]
1. The state of being fast and firm; firmness; fixedness;
security; faithfulness.

All . . . places of fastness [are] laid open. --Sir
J. Davies.

2. A fast place; a stronghold; a fortress or fort; a secure
retreat; a castle; as, the enemy retired to their
fastnesses in the mountains.

3. Conciseness of style. [Obs.] --Ascham.

4. The state of being fast or swift.

Synonyms: fixedness, fixity, fixture, secureness, speed, stronghold, swiftness

See Also: acceleration, bastion, blockhouse, citadel, deceleration, defence, defense, defensive structure, donjon, dungeon, execution speed, graduality, gradualness, haste, hastiness, hold, hurriedness, hurry, immovability, immovableness, keep, lodgement, lodging, lodgment, pace, precipitation, rate, redoubt, retardation, sconce, slowing

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