· 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"

Synonym(s): unhinge, disquiet, trouble, cark, distract, disorder

Hypernym(s): disturb, upset, trouble

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

Hypernym(s): deviate

· 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"

Hypernym(s): deviate

· throw into great confusion or disorder; "Fundamentalists threaten to perturb the social order"

Synonym(s): derange, throw_out_of_kilter

Hypernym(s): disorder, disarray

· causing distress or worry or anxiety; "distressing (or disturbing) news"; "lived in heroic if something distressful isolation"; "a disturbing amount of crime"; "a revelation that was most perturbing"; "a new and troubling thought"; "in a particularly worrisome predicament"; "a worrying situation"; "a worrying time"

Synonym(s): distressing, distressful, disturbing, troubling, worrisome, worrying