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Adjective: gut-wrenching  'gút,ren-ching
  1. Sickening, upsettingly emotional
    "The gut-wrenching scene in the movie left many audience members in tears"

See also: disgustful [archaic], disgusting, foul, grievous, gross-out [informal], heartbreaking, heartrending, heart-wrenching, loathful [archaic], loathly [literary], loathsome, nauseating, repellant, repellent, revolting, sickening, vile, wicked, yucky [informal], yukky [informal]