IPA: //ʌnˈsiːmli//
KK: /ʌnˈsimli/
Not appropriate or proper for a situation; something that is considered rude or offensive.
His unseemly behavior at the formal event shocked everyone.
In a way that is not proper or appropriate; behaving in a manner that is considered unacceptable or indecent.
He spoke unseemly during the meeting, which made everyone uncomfortable.
Unseemly → It is formed from "un-" (meaning not) and "seemly" (from Old English "seemlic", meaning proper or fitting). The word "unseemly" means not proper or fitting, describing behavior that is inappropriate or unbecoming.
Think of 'not' ('un-') being added to 'proper' ('seemly') — this helps you remember that unseemly describes something that is not proper.