Synonyms of unexcitable

1 Syllable
cool, cold, flat, dull, blah
2 Syllables
frigid, tranquil, groggy, sluggish, cold-fish, listless, stolid, deadpan
3 Syllables
passionless, lifeless, lethargic, iceberg, equable, passive, phlegmatic, unfeeling
4 Syllables
impassive, indifferent, apathetic, uninvolved, equanimous, emotionless
5 Syllables
disinterested, unemotional, unresponsive, dispassionate, imperturbable, inexcitable, desensitized, even-tempered
6 Syllables
uncompassionate, undemonstrative