say it: uh-NUR-ving
unnerving is an adjective meaning "inspiring fear". It carries one recorded sense.
inspiring fear
“the formidable prospect of major surgery”
“a tougher and more redoubtable adversary than the heel-clicking, jackbooted fanatic”
“something unnerving and prisonlike about high grey wall”
Definitions, synonyms and semantic relations for unnerving 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.