vexing
Definitions
Causing annoyance, frustration, or worry.
Difficult and much debated; problematic.
Examples
It was incredibly vexing to wait in line for three hours only to find out the office was closed.
The constant buzzing of the fly in the quiet room proved to be quite vexing during the exam.
Synonyms
annoying frustrating bothersome irritating troublesome aggravating disconcerting
Antonyms
pleasing soothing delightful comforting relaxing gratifying calming