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. (

• complicate ,
• perplex

) make more complicated; "There was a new development that complicated the matter" ;