making somebody feel slightly angry synonym irritating This interruption is very annoying. Her most annoying habit was eating with her mouth open. See related entries: Describing annoying traits, AngerExtra examples I found it really annoying not to be able to communicate. Please stop making that noise—it’s getting annoying. The background hum of the fan may be annoying to some users. The proposal will probably prove annoying to opposition MPs. I find her very annoying. The annoying thing was that I only had myself to blame.