More hair splitting is a phrase that means to analyze a situation in an overly precise and detailed manner. There are several synonyms for this phrase, including nitpicking, over-analyzing, overthinking, and micromanaging. Nitpicking refers to finding fault with small and unimportant details, while over-analyzing suggests analyzing a situation beyond what is necessary. Overthinking refers to thinking too much about something, often to the point of indecision, while micromanaging refers to exerting excessive control over every aspect of a situation. These synonyms are useful for describing situations in which a person is being overly critical or detailed, and they can be used interchangeably with more hair splitting.