The phrase "short on looks" is considered negative and derogatory. Instead, one can use a variety of synonyms that convey the same message without disrespecting someone's appearance. Some appropriate alternatives include "less attractive," "plain," "unremarkable," "average-looking," or "not very handsome/pretty." It's important to remember that physical appearance should never be the sole factor in judging someone's worth or character. Using more respectful language can help promote a positive and inclusive environment that values people for their unique qualities and contributions.