The word "un-manlier" refers to a lack of masculinity or characteristics traditionally associated with men. Antonyms for this term include "manlier," "masculine," "macho," "virile," and "robust." These words suggest strength, confidence, and decisiveness, qualities often associated with the stereotypical "manly" archetype. Other antonyms for "un-manlier" might include terms like "feminine," "delicate," or "effeminate," which carry connotations of weakness or fragility. However, it is important to note that these gendered descriptors are often problematic and limiting, and that there are many different ways to express and embody strength and resilience that go beyond stereotypical gender norms.