agitate alarm amaze annoy arouse astound complicate confuse depress dishearten disrupt distract excite frighten gall interrupt irk irritate outrage perplex perturb plague provoke puzzle rattle shake startle trouble unnerve unsettle vex worry afflict ail badger confound discompose distress fluster grieve harass interfere intrude molest muddle pain pester pique rouse ruffle tire unhinge burn up make uneasy shake up