
Fastness
Physical Security
Refers to solid attachment or positioning that resists movement or separation.

The shelf's fastness prevents it from wobbling.
Metaphorical Use
Can imply reliability or emotional strength, not just physical sturdiness.

His fastness to his principles made him a trusted leader.
Not Fast Speed
Don't confuse it with 'quickness'; 'fastness' isn't about speed.

Despite the storm, the fastness of the building remained intact.
Compare with
AlacrityHastePromptnessQuickRapiditySpeedSwiftVelocity
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