অর্থ : Calm and unruffled self-assurance.
উদাহরণ :
He performed with all the coolness of a veteran.
সমার্থক : coolness, imperturbability
Imperturbableness ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Imperturbableness ka matlab kya hota hai?