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Webster 1913 Edition

Imperturbable

Imˊper-turb′a-ble

,

Adj.

[L.

imperturbabilis

; pref.

im-

not +

perturbare

to disturb: cf. F.

imperturbable

. See

.]

Incapable of being disturbed or disconcerted;

as,

imperturbable

gravity

.

Webster 1828 Edition

Imperturbable

IMPERTURB'ABLE

,

Adj.

[L.in and perturbo, to disturb; per and turbo.]

That cannot be disturbed or agitated; permanently quiet.