Bald/bɔːld/ Definition 1 of 4Pro Tip 1/3Human Context Used to describe men more often than women, associated with aging or hereditary factors. My grandfather became bald in his fifties. Pro Tip 2/3Sensitive Topic Being bald can be sensitive for some; use the term respectfully. He's sensitive about being bald, so I don't mention it. Pro Tip 3/3Not Just Age Not only aging, but medical conditions or choices can make someone bald. She's proudly bald after her treatments.