alertness
Translation
alertness, vigilance
Examples
Mental alertness is important for this job.
Mental alertness is important for this job.
Grammar Patterns
((a state of)) alertness The situation requires constant alertness.
Similar Words
Synonyms: vigilance, watchfulness, attentiveness; Antonyms: drowsiness, inattention
Etymology
From the adjective 'alert' plus the suffix '-ness', which forms nouns indicating a state or quality.
Memory Tips
Think of 'alertness' as the state of being 'alert'. The '-ness' suffix often means 'the quality of' (e.g., happiness, kindness).