What is another word for Vigilant? - 144 Vigilant Synonyms

Need another word for Vigilant? Use these synonyms of Vigilant from our thesaurus to say it differently.

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Synonyms & Similar Words

watchful attentive alert observant careful cautious mindful aware heedful vigilant wakeful circumspect discerning perceptive sharp keen eagle-eyed meticulous scrupulous thorough diligent conscientious thoroughgoing fastidious meticulous strict rigid exacting demanding precise accurate sensitive responsive reactive proactive prepared ready on_the_lookup

According to Merriam-Webster, "vigilant" means being watchful and attentive, especially to potential danger or trouble.

The Oxford English Dictionary defines "vigilant" as having or showing a strong and constant attention to something, especially in order to prevent or detect something unwanted.
Cambridge Dictionary describes "vigilant" as carefully watching or paying attention to something, especially in order to prevent problems or dangers.

The security guard was vigilant and caught the thief trying to sneak into the building.
The doctor was vigilant in monitoring the patient's condition and quickly responded to any changes.
The hikers were vigilant and avoided the wild animals in the forest by making noise and staying on the trail.
The company was vigilant in enforcing its policies and quickly addressed any violations.
The teacher was vigilant and helped the student who was struggling with the lesson.

careless negligent inattentive oblivious unaware asleep distracted indifferent apathetic lethargic lazy slack remiss lax lackadaisical unconcerned unresponsive unprepared neglectful heedless thoughtless imprudent rash reckless irresponsible incautious unwary