01 a. Incapable of being disturbed or disconcerted; as, imperturbable gravity.
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1.
Incapable of being disturbed or disconcerted; as, imperturbable gravity.
Entry
1 sense
Webster, 1913
Imperturbable
· Im·per·turb·a·ble
· IPA /ˌɪmpəɹˈtɜɹbəb(ə)l/