Naphthoquinone Naphthoquinone antonyms If you know antonyms for Naphthoquinone, then you can share it. Suggest antonym for Naphthoquinone Naphthoquinone synonyms antihemorrhagic factor vitamin K fat-soluble vitamin If you know synonyms for Naphthoquinone, then you can share it. Suggest synonym for Naphthoquinone