Adverbs are easy to build. Take an adjective or a participle, add -ly, and behold! you have an adverb. But you’d probably be better off without it. Do not write tangledly. The word itself is a tangle. Do not even write tiredly. Nobody says tangledly and not many people say tiredly. Words that are not used orally are seldom the ones to put on paper. He climbed tiredly to bed. »»»»» He climbed wearily to bed. The lamp cord lay tangledly beneath her chair. »»»»» The lamp cord lay in tangles beneath her chair.