IPA: //ʌnˈspɔːrts.mən.laɪk//
KK: /ʌnˈspɔrtsmənˌlaɪk/
Not showing the qualities or behavior expected from a good athlete, such as fairness and respect.
His unsportsmanlike conduct during the game upset many fans.
Unsportsmanlike → It is formed from "un-" (meaning not), "sportsman" (from "sport" which comes from Old French *desport*, meaning leisure or activity), and "-like" (meaning resembling or characteristic of). The word describes behavior that is not characteristic of a good sportsman, implying unfairness or lack of respect in sports.
Think of 'not' ('un-') being combined with 'sportsman' to describe someone who does not behave like a good sportsman, which helps you remember that 'unsportsmanlike' refers to unfair or disrespectful behavior in sports.