1. (

• perplex ,
• vex ,
• stick ,
• get ,
• puzzle ,
• mystify ,
• baffle ,
• beat ,
• pose ,
• bewilder ,
• flummox ,
• stupefy ,
• nonplus ,
• gravel ,
• amaze ,
• dumbfound

) be a mystery or bewildering to; "This beats me!"; "Got me;

2. (

• thwart ,
• queer ,
• spoil ,
• scotch ,
• foil ,
• cross ,
• frustrate ,
• baffle ,
• bilk ,

) hinder or prevent (the efforts, plans, or desires) of; "What ultimately frustrated every challenger was Ruth's amazing September surge"; "foil your opponent" ;

3. (

• baffle ,
• regulate ,

) restrain the emission of (sound, fluid, etc.) ;

1. (

• 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" ;