roil - definition and synonyms

verb
  1.   From our crowdsourced Open Dictionary
    to seriously disturb; to throw into confusion

    One lesson from the crises that have roiled the eurozone over the past five-plus years is that anyone who tells you the only response to a public debt crisis is to slash spending and embark on “structural reform” is either masochistic or downright mad.

    Submitted from United Kingdom on 02/02/2015