1. the quality or state of being swift; speed or rapidity of movement or action

Examples

• The cheetah’s swiftness allows it to catch prey easily.
• She moved with remarkable swiftness through the crowded hallway.
• The swiftness of the river’s current surprised the kayakers.
• His swiftness in making decisions impressed his colleagues.
• The swiftness of technological change can be overwhelming.
• The athlete’s swiftness on the track earned her a gold medal.