ज़बरदस्त
definition
verb
his family persevered with his treatment
continue in a course of action even in the face of difficulty or with little or no prospect of success.
translation of 'persevering'
adjective
ज़िद्दी,
ज़बरदस्त,
हठी,
सख़्त,
दृढ़
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Credits: Google Translate