Antonyms of noun carefulness

1 of 2 senses of carefulness

Sense 2
carefulness -- (the quality of being careful and painstaking; "I admired the carefulness of his work")
       Antonym of carelessness (Sense 1)
      => carelessness, sloppiness -- (the quality of not being careful or taking pains)

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

2 senses of carefulness

Sense 1
caution, cautiousness, carefulness -- (the trait of being cautious; being attentive to possible danger; "a man of caution")
       => attentiveness -- (the trait of being observant and paying attention)

Sense 2
carefulness -- (the quality of being careful and painstaking; "I admired the carefulness of his work")
       => attentiveness -- (the trait of being observant and paying attention)