Compare imperturbable with other words:
imperturbable vs. perturbable
imperturbable vs. indomitable
equable vs. imperturbable
imperturbable vs. imperturbably
imperturbable vs. pressure
collected vs. imperturbable
calm vs. imperturbable
excited vs. imperturbable
imperturbable vs. upset
imperturbable vs. perturb
imperturbable vs. placid
imperturbable vs. phlegmatic