usage: 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"
2. perturb, deviate
usage: disturb or interfere with the usual path of an electron or atom; "The electrons were perturbed by the passing ion"
3. perturb, deviate
usage: 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"
4. perturb, derange, throw out of kilter, disorder, disarray
usage: throw into great confusion or disorder; "Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt"
1. flustered, hot and bothered(predicate), perturbed, rattled, discomposed (vs. composed)
usage: thrown into a state of agitated confusion; (`rattled' is an informal term)