Antonyms of adj unexcitable

1 sense of unexcitable

Sense 1
unexcitable (vs. excitable) -- (not easily excited; "an unexcitable temperament")

excitable (vs. unexcitable) -- (easily excited)
        => high-keyed -- ((of persons) excitable)
        => quick, warm -- (easily aroused or excited; "a quick temper"; "a warm temper")
        => skittish, flighty, spooky, nervous -- (unpredictably excitable (especially of horses))

Similarity of adj unexcitable

1 sense of unexcitable

Sense 1
unexcitable (vs. excitable) -- (not easily excited; "an unexcitable temperament")
       => steady -- (not easily excited or upset; "steady nerves")