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alertness

NOUN
watchfulness
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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In a small study on people with insomnia, when they were given a false negative sleep score, those individuals reported sleepiness and fatigue, as well as lower levels of alertness and clear thinking.

From Slate Aug. 11, 2026

“She is eating on her own, her energy and alertness have noticeably improved, and she has become much more feisty during feedings.”

From Los Angeles Times Jul. 28, 2026

Several studies show that napping during shift work, where possible, is associated with reduced sleepiness and improved alertness.

From BBC Jul. 19, 2026

Today’s ice swimmers rave about the rush and subsequent feelings of alertness, contentment and energy.

From The Wall Street Journal Jul. 6, 2026

Schlesinger was a man of thirty or so, lean, with fair hair cut very short and a vivid alertness in his expression.

From "The Book of Dust: La Belle Sauvage" by Philip Pullman




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