| imperturbableness 
 
 calm and unruffled self-assurance
 - he performed with all the coolness of a veteran
 • Syn:
 coolness, imperturbability
 • Derivationally related forms:
 imperturbable, imperturbable (for: imperturbability), cool (for: coolness)
 • Hypernyms:
 calmness
 
 
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