1. Extremely irritating to the nerves
   "nerve-racking noise"
   - nerve-wracking, stressful, trying

See also: disagreeable

• keelhaul
• keelson
• keen
• keen-eyed
• keen-sighted
• keenly
• keenness
• keep
• keep abreast
• keep an eye on
• keep apart
• keep away
• keep back
• keep company
• keep down
• keep fit
• keep going
• keep guard
• keep in
• keep in line
• keep mum
• keep note
• keep off
• keep on
• keep one's distance