#1
alertness n. [
watchfulness, wakefulness, vigilance] the process of paying close and continuous attention; "wakefulness, watchfulness, and bellicosity make a good hunter"; "vigilance is especially susceptible to fatigue"
. wn #2
alertness n. [
alerting] a state of readiness to respond; "alerting was indicated by the desynchronization of the EEG"
. wn #3
alertness n. [
sharp-sightedness, on the qui vive] lively attentiveness
. wn