excitable
adj. B2 Upper Intermediate US //ɪkˈsaɪtəbəɫ// UK //ɛksˈaɪtəbəl// ex·citable
adj. easy to get excited or upset. You use this to describe someone who reacts strongly to small things.
adj. easily excited or agitated; prone to sudden emotional or physical reactions. Often used to describe children or animals with high energy levels.
The children are very excitable and get bored quickly.
The puppy is so excitable that it jumps up and down every time someone enters the room.
While the lead researcher remained calm, the rest of the team was clearly excitable, jumping to conclusions about the data before the final analysis was complete.
From excite + -able.