say it: di-skuhn-SUR-ting
disconcerting is an adjective meaning "causing an emotional disturbance". It carries one recorded sense.
causing an emotional disturbance
“his disconcerting habit of greeting friends ferociously and strangers charmingly”
“an upsetting experience”
Definitions, synonyms and semantic relations for disconcerting 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.