Wiktionary
hyperalertness
n. The condition of being hyperalert
Usage examples of "hyperalertness".
Not startled, but in his customary state of hyperalertness, Odo turned quickly and spotted the source, a small plastoid box with a pair of dangling probe wires and a digital readout on one side.
In him I detected, as usual, only the scent of hyperalertness given off by the trained hunter, the controlled, unreadable spoor of the predator.