Antonyms of noun healthfulness

1 sense of healthfulness

Sense 1
healthfulness -- (the quality of promoting good health)
       Antonym of unhealthfulness (Sense 1)
      => unhealthfulness -- (the quality of promoting poor health)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun healthfulness

1 sense of healthfulness

Sense 1
healthfulness -- (the quality of promoting good health)
       => wholesomeness -- (the quality of being beneficial and generally good for you)