Origin of vigilant
Can be confusedvigilant vigilante
Examples from the Web for vigilant
Nervous fans can keep a vigilant eye on it via a webcam hosted on the town website that offers 24-hour goat viewing.
They washed their hands methodically under the vigilant eye of Fatu.
A vigilant tourist snapped a picture on her cellphone and showed guards who caught the kids before they could escape.Pompeii Made It Through a Volcano, but Can It Survive Vandals?|Barbie Latza Nadeau|March 22, 2014|DAILY BEAST
Bieber tried to sneak out of the house, covering himself in a sheet, but vigilant photographers caught him in the act.Justin Bieber’s No Good, Very Bad Year: Alleged Prostitutes, Reckless Driving, and More|Amy Zimmerman|December 13, 2013|DAILY BEAST
Nairobi residents receive alerts and warnings from embassies on a monthly sometimes-weekly basis telling them to be vigilant.Slaughter in Nairobi: Bloody Siege in Shopping Mall Kills Dozens|Margot Kiser|September 22, 2013|DAILY BEAST
The arm of the Inquisition was long, its watch was vigilant, and its weapons were subtle.Desiderius Erasmus of Rotterdam|Ephraim Emerton
He is early taught to be sharp in bargains, and vigilant for every advantage.Twelve Causes of Dishonesty|Henry Ward Beecher
I have no fears of an attack on this place, yet I shall be as vigilant as though an attack were certain.A History of Oregon, 1792-1849|William Henry Gray
He dwelt strongly upon the difficulty of withdrawing the army in the face of so vigilant and powerful an enemy.Burgoyne's Invasion of 1777|Samuel Adams Drake
Like the Hollanders, they became great by the very wretchedness of their site, and the vigilant industry it enforced.Mexico, Aztec, Spanish and Republican Vol. 1 of 2|Brantz Mayer