noun
- plural of alertness; the quality or state of being alert; watchfulness and readiness to respond
Usage: Usually used in plural to refer to multiple instances or aspects of alertness, or in abstract/formal contexts
Examples
- The security guards' alertnesses prevented the theft.
- Mental alertnesses vary throughout the day depending on sleep and caffeine intake.
- The coach praised the team's alertnesses during the final minutes of the game.
- Different alertnesses are required for driving in various weather conditions.
- The study measured alertnesses in participants before and after exercise.