IMPERTRANSIBLE Im`per*tran"si*ble, a. Etym: [L. pref. im- not + pertransire to go through. See Per- and Transient.]
Defn: Incapable of being passed through. [R.]
IMPERTURBABILITY
Im`per*turb`a*bil"i*ty, n.
Defn: The state or quality of being imperturbable. [1913 Webster]
IMPERTURBABLE Im`per*turb"a*ble, a. Etym: [L. imperturbabilis; pref. im- not + perturbare to disturb: cf. F. imperturbable. See Perture.]
Defn: Incapable of being disturbed or disconcerted; as, imperturbable gravity.
IMPERTURBABLY
Im`per*turb"a*bly, adv.
Defn: In an imperturbable manner; calmly. C. Bronté.
IMPERTURBATION
Im*per`tur*ba"tion, n. Etym: [L. imperturbatio.]
Defn: Freedom from agitation of mind; calmness; quietude. W. Montagu.