vigilant

adjective2

1. •
   Watchful, especially for danger or disorder; alert; wary.

   • Be vigilant for signs of disease in your garden.
2. •
   (rare) In vigilance.

   • von der LUTKE / Argent, a crane vigilant proper. AG. Carl von der Lutke. Arr. 1857 with the British German Crimea legion. Obtained a grant of land in the Eastern Province of the Cape Colony. — 1972