IPA: /ʌnˈmænliər/
KK: /ʌnˈmænliər/
Less manly; lacking qualities traditionally associated with masculinity.
He felt that showing his emotions made him appear unmanlier than his friends.
Unmanlier → It is formed from "un-" (meaning not) and "manly" (from Old English "manlīc", meaning having the qualities of a man). The suffix "-er" indicates a comparative form. Thus, "unmanlier" means not having the qualities of a man to a greater degree than something else.
Think of 'not' ('un-') being added to 'manly' to show a lesser degree of manliness — that's why 'unmanlier' means less manly.