illegibly

In a sentence

The doctor illegibly scrawled his signature: if it weren't on his letterhead, no-one would know who had written it.

डाक्टरले आफ्नो हस्ताक्षर नपढिने गरी कोरे: यदि ती उनको लेटरहेडमा नभएको भए कसले लेखेको हो भन्ने कसैलाई थाहा हुँदैनथ्यो।