There are several ways to describe someone who speaks without thinking, depending on the context and nuance you want to convey:
- Impulsive: This is a common term for someone who acts without considering the consequences. This can be applied to speech as well as actions.
- Blurt out: This describes someone who suddenly and unexpectedly says something without thinking.
- Verbal diarrhea: This is a humorous and slightly derogatory term for someone who talks excessively and often without much substance.
- Shoot from the hip: This idiom refers to someone who speaks their mind quickly and directly, without much thought or consideration.
- Verbal disinhibition: This refers to a lack of self-control in speech, often due to a mental health condition.
The specific term used will depend on the context and the desired tone. For example, "impulsive" might be used to describe a friend who often makes inappropriate comments, while "verbal disinhibition" might be used to describe someone with a serious condition that affects their ability to control their speech.