carefulness
1 antonym for carefulness — opposites grouped by meaning.
Noun — The quality of taking care and paying close attention to avoid mistakes.
Antonyms
Etymology
From Middle English (exact form unrecorded), from Old English carfulnes ("care, anxiety, a charge, cure of souls, solicitude, carefulness, curiousness, curiosity"); equivalent to careful plus -ness.
Full origin of carefulness →