What is the definition of vigilant?

Answer 1

The adjective vigilant means watchful, or alert and attentive to danger or trouble.

An example sentence might be this one:

The sentry remained vigilant throughout the night.

Answer 2

In the US, a citizen (native or naturalized inhabitant) has the right (privilege) to vote. As eternal vigilance is truly the price of freedom, the citizen guards their rights (privileges) by staying aware of the political environment and participating if not fully, then at least regularly, by exercising their right to vote.

So a vigilant citizen would be a watchful inhabitant.

Answer 3

watchful, on your guard, attentive, alert, wary, cautious, observant, heedful, on the alert, aware

Answer 4

Alert, watchful.

Answer 5

Watchful!