Definition of alertness in English:
The quality of being alert: nothing could escape the steel trap of my alertness a lack of mental alertness
More example sentences
- Travelers to such destinations practice extra alertness, precaution and prudence.
- Anything related to Taiwan's survival should be heeded with special alertness.
- Fire has caused £30,000 damage to a woollen waste mill, and it could have been worse but for the alertness of a teenage girl.