Some synonyms are lackadaisical (when talking about a disinterested/carefree attitude towards doing something), languid (more towards lacking physical energy to do something) and spiritless (lacking the spirit/psychological energy to do something). Listless is used commonly at least in sports reporting, but I would need to see some examples of where you want to use the word to know if it's the best option or not.

It's a well-known word but I don't see it very commonly. I think I am more likely to hear it than see it. See this link for synonyms https://www.collinsdictionary.com/dictionary/english-thesaurus/listless