unfastenEnglish → HindiOxford English–Hindi unfasten /ʌnˈfɑːsn अन्ˈफ़ास्न्/ verb [T] to open something that was fastened (बंद बटन आदि को) खोलना to unfasten a belt/button/chain/lock ✪ पर्याय undo ✪ विलोम fasten