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English definition of “imperturbable”

imperturbable

adjective uk   /ˌɪm.pəˈtɜː.bə.bl̩/ us    /-pɚˈtɝː-/ formal
always staying calm and controlled, even in difficult situations that would cause other people to worry
imperturbably
adverb uk   /-bli/ formal us  
(Definition of imperturbable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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