unbrokenvigilance
nounUK /ʌnˈbrəʊkən ˈvɪdʒɪləns/
US /ʌnˈbroʊkən ˈvɪdʒələns/
Watching something very carefully all the time without stopping.
The night guard's unbrokenvigilance kept the museum safe.
OTHER MEANINGS
2. The state of never relaxing your guard over a long period.
Her unbrokenvigilance over the children lasted the whole trip.
3. A steady, tireless effort to notice any danger or mistake.
The pilot's unbrokenvigilance prevented a serious accident.
4. Keeping close and continuous watch on something important.
Unbrokenvigilance is needed when caring for a sick pet.