Pronunciation: /ˈθɔːt.ləs.nəs/
noun the quality or state of being without thought or consideration; lack of mindfulness or awareness
A1 Her thoughtlessness caused her to forget her keys at home.
A2 The child's thoughtlessness led to him breaking the vase.
B1 His thoughtlessness in not checking the weather forecast resulted in getting caught in the rain.
B2 The team's thoughtlessness in not preparing for the presentation led to a disastrous outcome.
C1 The CEO's thoughtlessness in making decisions without considering the consequences caused chaos in the company.
C2 The politician's thoughtlessness in his remarks sparked outrage among the public.
formal The accident was caused by the driver's thoughtlessness.
informal I can't believe his thoughtlessness led to such a mess.
slang Her thoughtlessness really messed things up.
figurative His thoughtlessness was like a wrecking ball in our plans.
thoughtlessness
thoughtlessnesses
more thoughtless
most thoughtless
think
will think
have thought
is thinking
thoughtlessness
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to think
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thought