Definition of Rash

acting without thinking

Examples of Rash in a sentence

The boy acted in a rash manner and didn’t consider the consequences of driving under the influence.  

Because of Tim’s rash behavior, he’ll be in prison for the next twenty years.  

This should not be a rash decision so take your time and think over your options.  

If you judge someone solely on appearance, you’re making a rash judgment because you know nothing about the person.  

John made a rash decision and purchased a used vehicle without having it inspected.  

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