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Alertness - Meaning, Definition & English Examples

Alertness is the state of being watchful, attentive, and quick to respond. It involves mental sharpness and readiness to notice and react to changes or potential dangers.

alertness

/əˈlɜrtnəs/ /əˈlɜːtnəs/

Definition:

The state of being watchful and quick to notice or respond to potential danger or opportunity.

Synonyms:

vigilance, attentiveness, awareness, watchfulness

Part of Speech:

noun

Antonyms:

inattentiveness, unawareness

Common Collocations:

mental alertness, heightened alertness, maintain alertness, lack of alertness, sudden alertness

Derivatives:

alert, alerted, alertly

Usage Tips:

Use "alertness" to describe a state of readiness or sharp attention, often in contexts like safety or focus.

Common Phrases:

on high alertness, razor-sharp alertness, full of alertness

Etymology:

Derived from Italian "all'erta" (on the watch), via French "alerte," meaning vigilance or readiness.

Examples:

  • 1. She maintained her alertness during the night shift.
  • 2. His quick reflexes showed his natural alertness.
  • 3. Lack of sleep reduces mental alertness significantly.
  • 4. The guard's alertness prevented a security breach.

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