ISTJ: So Dependable

ISTJs are dutiful, logical and practical. These traits come together to make them core members of society.

When an ISTJ says they will do something, you can rely on them to get it done, and they will not gloss over any of the details either. They take responsibility very seriously. You won’t catch an ISTJ cancelling plans an hour before you’re meant to meet up. 

“You are always responsible for how you act, no matter how you feel.”

Robert Tew

When given a task, ISTJs will come up with a step-by-step plan and execute it in a thorough and committed manner. They’re not the jump-in-head-first type. They will take time to analyse the facts and look at what has been done before. They’re focused individuals and are rarely distracted when working on a project. 

Famous ISTJs

  1. Ross Gellar
  2. Sigmund Freud
  3. The Queen

Best matches


When it comes to relationships, ISTJs bring security and stability to the table. They’re more likely to offer practical advice to a partner rather than emotional support and tend to be traditional. ISTJs are not the most touchy-feely or openly affectionate people, but they show their love in other ways and having a partner that appreciates this is key for a healthy relationship. 

Ideal date

Take a stroll through history and check there are no skeletons in the cupboard at a museum. 


ISTJs are sensible, stable and balanced, making them great in a crisis.
ISTJs value integrity and can always be relied upon to stick to their word.
ISTJs are devoted to family and friends and always have their back.
ISTJs keep their eyes on the prize to make sure they meet deadlines.


ISTJs can be inflexible which can result in them not seeing the bigger picture.
ISTJs can be quick to criticize and fault people without good reason.
ISTJs can have difficulty embracing new ideas which can stifle creativity.
ISTJs can be too direct, which sometimes hurts other people’s feelings.

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