alertness

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.

And more serious concerns such as a stroke need to be ruled out when dizziness or vertigo is accompanied by severe imbalance, double vision, slurred speech, weakness, numbness, trouble walking or decreased alertness.

From The Wall Street Journal • Apr. 15, 2026

These chemicals play key roles in motivation, attention, alertness, and stress regulation.

From Science Daily • Feb. 7, 2026

They do so by irritating the linings of the nose and lungs, triggering a reflex that increases breathing rate and blood flow, fostering alertness.

From Los Angeles Times • Jan. 12, 2026

"This is done only as a precautionary measure, but it is appropriate that we are at a crescent sense of alertness just at the moment for the time being," he said.

From BBC • Dec. 15, 2025

Jane’s alertness in moving, proved her as ready as her aunt had preconceived.

From "Emma" by Jane Austen