Definition of quick-eared:
(adj) :
Moving with speed, rapidity or swiftness, or capable of doing so; rapid; fast.
(adj) :
Occurring in a short time; happening or done rapidly.
(adj) :
Lively, fast-thinking, witty, intelligent.
(adj) :
Mentally agile, alert, perceptive.
(adj) :
(of people or tempers) Easily aroused to anger; quick-tempered.
(adv) :
Quickly, in a quick manner.