The antonyms for the word "un-excitable" are polar opposites and are often used to describe people with contrasting personalities. The first antonym is "excitable," which means easily agitated, stirred, or stimulated by external factors. The second antonym is "volatile," which describes individuals prone to sudden outbursts of emotion, which can be triggered by the slightest events.
The third antonym for un-excitable is "impatient." This personality type denotes a lack of composure with a focus on immediate results, which can escalate into frustration and irritation quickly. Fourthly, the word "irritable" also serves as an antonym for un-excitable. This term refers to individuals who are easily irritated and often lose their temper.