Do you really want to send Webster 1913 a message saying you like their work?
Im`per*turb"a*ble (?), a. [L. imperturbabilis; pref. im- not + perturbare to disturb: cf. F. imperturbable. See Perture.]
Incapable of being disturbed or disconcerted; as, imperturbable gravity.
© Webster 1913
Log in or register to write something here or to contact authors.