imperturbable

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌɪmpə^rˈtɜː^rbəb^əl/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˌɪmpɚˈtɝbəbəl/

US:USA pronunciation: respellingUSA pronunciation: respelling(im′pər tûr′bə bəl)

im•per•turb•a•ble adj.

incapable of being upset; calm:remained his usual imperturbable self during the crisis.

im•per•turb•a•bil•i•ty n. [uncountable]
im•per•turb•a•bly, adv.: sitting there imperturbably through the uproar.See -turb-.

im•per•turb•a•ble adj.

incapable of being upset or agitated;
not easily excited;
calm:imperturbable composure.

im′per•turb′a•bil′i•ty, im′per•turb′a•ble•ness, n.
im′per•turb′a•bly, adv.

composed, collected, impassive, cool, unmoved.

Collins Concise English Dictionary © HarperCollins Publishers::

imperturbable /ˌɪmpɜːˈtɜːbəb^əl/ adj

ˌimperˌturbaˈbility, ˌimperˈturbableness n ˌimperˈturbably adv

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