1. (

• debatable ,
• problematic ,
• problematical

) open to doubt or debate; "If you ever get married, which seems to be extremely problematic" ;

2. (

• baffling ,
• elusive ,
• knotty ,
• problematic ,
• problematical ,
• tough ,

) making great mental demands; hard to comprehend or solve or believe; "a baffling problem"; "I faced the knotty problem of what to have for breakfast"; "a problematic situation at home" ;