Simsimhada 심심하다 is a Korean adjective meaning "boring" or "bland".
Simsimhada 심심하다 is also a Korean adjective meaning "very profound".
Difficult as it may sound, they aren't hard to distinguish in context for native speakers of the language, or so it was once the case. After a store in Seoul's Hongdae area issued on Aug 20 a "very profound apology" (simsimhan sagwa 심심한 사과) on Twitter for causing inconvenience during the signup process for an event, it was inundated with criticism from some who believed the management was being insincere and mocking.