S: (v) confuse, throw, fox, befuddle, fuddle, bedevil, confound, discombobulate (be confusing or perplexing to; cause to be unable to think clearly) "These questions confuse even the experts"; "This question completely threw me"; "This question befuddled even the teacher"
S: (v) demoralize (confuse or put into disorder) "the boss's behavior demoralized everyone in the office"