alertly

Definitions

In a way that shows quick, keen perception and readiness to act.

With a state of vigilant attention or watchfulness.

Examples

The guard stood alertly at the entrance, watching for any signs of trouble.

The cat sat alertly on the windowsill, tracking the movement of a bird in the garden.

Synonyms

attentively vigilantly watchfully sharply observantly keenly warily

Antonyms

sluggishly inattentively carelessly listlessly drowsily negligently unobservantly