disturber
- n a troubler who interrupts or interferes with peace and quiet; someone who causes disorder and commotion
- That task is to be a highly visible and articulate disturber of the complacent and the comfortable.
- To judge by his treatment in the mercurial British press, Adenauer was right in his fear of being isolated as a peace disturber just because he warned against the "artificial .
- No mere disturber, no second-rate competitor disgruntled over his own failures uttered those words last week at Langley Field.