vexation

noun

1.
anger produced by some annoying irritation
dreevedness drie feaze irk noy annoyance chafe
2.
the psychological state of being irritated or annoyed
angmood vexing annoyance botheration irritation
Derived from:
vex
3.
something or someone that causes anxiety; a source of unhappiness
cark concern headache worry
Derived from:
vex
4.
the act of troubling or annoying someone
irksomeness annoyance annoying irritation
Derived from:
vex