perturbing

1. disturb in mind or make uneasy or cause to be worried or alarmedExamples: "She was rather perturbed by the news that her father was seriously ill"Synonyms: cark, disorder, disquiet, distract, perturb, trouble, unhinge

2. disturb or interfere with the usual path of an electron or atomExamples: "The electrons were perturbed by the passing ion"Synonyms: perturb

3. cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pullExamples: "The orbits of these stars were perturbed by the passings of a comet"Synonyms: perturb

4. throw into great confusion or disorderExamples: "Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt"Synonyms: derange, perturb, throw out of kilter