feeling or caused to feel uneasy and self-conscious; "felt abashed at the extravagant praise"; "chagrined at the poor sales of his book"; "was embarrassed by her child's tantrums"
a change downward; "there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales"
a process of becoming smaller or shorter
decrease in size, extent, or range; "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fall to under a hundred pounds"; "his voice fell to a whisper"
throw into great confusion or disorder; "Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt"
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"
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"