Standard Synonyms
These synonyms are thoughtlessness
Unthinking
Impulsive
Heedless
And rash.
Slang Synonyms
Acting without thinking
Not considering the consequences of one’s actions
Recklessness
Being careless
Academic Synonyms
The words ‘recklessness’ and ‘carelessness’ are similar in meaning to ‘thoughtlessness’.
Old English Synonyms
Carelessness
Neglect
Inattention
Inconsideration
Thoughtlessness
Negligence
Regional Synonyms
Lack of thought
Mindless
Thoughtless
Unthinking
Industry-specific Synonyms
-irresponsibility
-negligence
-lack of consideration
-inattention
– carelessness
Antonyms
Meaning
The state or quality of being thoughtless; lack of thought or consideration.
Definition
The quality or state of being thoughtless; lack of thought or care.
Example Sentences
1. His thoughtlessness knows no bounds.
2. She was roundly criticized for her thoughtlessness.
3. His thoughtlessness cost him dearly.
4. The thoughtlessness of youth is often endearing.
5. Her thoughtlessness led to her undoing.