অর্থ : To an exceedingly great extent or degree.
উদাহরণ :
He had vastly overestimated his resources.
Was immensely more important to the project as a scientist than as an administrator.
সমার্থক : immensely
Vastly ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Vastly ka matlab kya hota hai?