Here's a breakdown:
* Acting quickly: It implies a lack of deliberation or planning.
* Without thought: It means not considering the consequences or potential outcomes.
* Without care: It suggests a disregard for potential harm or risk.
Examples:
* "He made an impetuous decision to quit his job without having another one lined up."
* "Her impetuous spending habits led to financial problems."
Synonyms:
* Rash
* Hasty
* Impulsive
* Headstrong
* Reckless
Antonyms:
* Cautious
* Deliberate
* Thoughtful
* Prudent
* Careful