alertness

/ə'lə:tnis/
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Thân thiện
alertness

The guard maintains a high level of alertness during the night watch.

Definition
  1. Noun:
    • The state of being watchful and ready to respond: "Alertness" refers to the quality of being vigilant, attentive, and prepared to deal with anything that might happen.
    • Lively attentiveness or wakefulness: It describes a condition of being fully awake, aware, and paying close, continuous attention to one's surroundings.
Usage
  • Alertness is an uncountable noun used to describe a person's or animal's mental state. It is often discussed in contexts requiring focus, such as driving, security, or studying.
  • It is commonly modified by adjectives like , , , or .
Examples
  • The security guard's alertness prevented a break-in.
  • A good driver must maintain a high level of alertness on long journeys.
  • Coffee can increase mental alertness for a short period.
  • The surgeon's success depends on her skill and alertness.
Advanced Usage
  • "A state of alertness": A condition of being prepared and watchful.
    • The soldiers were in a constant state of alertness during the mission.
  • "Heightened alertness": An increased or intensified level of vigilance.
    • The news of the storm put the coastal towns on heightened alertness.
Variants and Related Words
  • Alert (adj., n., v.): The base form.
    • Adjective: Quick to notice; vigilant. (e.g., An alert guard)
    • Noun: A warning of danger. (e.g., A tsunami alert)
    • Verb: To warn someone of a danger. (e.g., The siren alerted the town.)
  • Alertly (adv.): In a watchful manner.
    • She watched alertly for any sign of movement.
Synonyms
  • Vigilance: The action or state of keeping careful watch for possible danger or difficulties.
  • Watchfulness: The quality of being alert and vigilant.
  • Attentiveness: The action of paying close attention to something.
  • Wakefulness: A state of being awake and aware.
Antonyms
  • Inattentiveness: A lack of attention; heedlessness.
  • Unawareness: Lack of awareness or consciousness.
  • Drowsiness: A state of being sleepy and lethargic.
alertness

The guard maintains a high level of alertness during the night watch.

Noun
  1. lively attentiveness
  2. a state of readiness to respond
    • alerting was indicated by the desynchronization of the EEG
  3. the process of paying close and continuous attention
    • wakefulness, watchfulness, and bellicosity make a good hunter
    • vigilance is especially susceptible to fatigue