perturb

Verb

• throw into great confusion or disorder
  • Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt
    

• cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull
  • The orbits of these stars were perturbed by the passings of a comet
    

• disturb or interfere with the usual path of an electron or atom
  • The electrons were perturbed by the passing ion
    

• disturb in mind or make uneasy or cause to be worried or alarmed
  • She was rather perturbed by the news that her father was seriously ill
    

Related words

• Synonyms: 
  derange , throw out of kilter , unhinge , disquiet , trouble , cark , distract , disorder