Title. I'm looking for a word or expression that means that someone didn't think about the consequences of an action but still executed said action.
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions on choosing an ideal word or phrase must include information on how it will be used in order to be answered. For help writing a good word or phrase request, see: About single word requests" – Community, Jacinto, ab2
Try reckless. ODO definition:
(Adjective) Heedless of danger or the consequences of one’s actions; rash or impetuous:
"you mustn’t be so reckless"
From Oxford Dictionaries, thoughtless: Without consideration of the possible consequences
E.g. to think a few minutes of thoughtless pleasure could end in this.