Adjective. Being BOTH vigilant (being alert, cautious, watchful of possible danger or difficulties) AND diligent (
effort done with, or being
steady, persistent, persevering ).
Noun = Viligence
Adverb = Viligently
Lily was viligent, making her rounds every hour, every day, every year of her
life, making sure no intruders would ever enter her
home on her watch. Even when she was old and gray, she still investigated every squirrel-like, cat-like,
human-like or alien-like noises.