say it: nurv-RAK-ing
nerve-racking is an adjective meaning "extremely irritating to the nerves". It carries one recorded sense.
extremely irritating to the nerves
“nerve-racking noise”
“the stressful days before a war”
“a trying day at the office”
Definitions, synonyms and semantic relations for nerve-racking come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.