INFJ + ISTJ

INFJ’s and ISTJ’s are significantly different, even though they are both Introverted, Judging personalities who prefer to spend time alone and stick to a plan. INFJ's are forward-thinking, compassionate, and creative, whereas ISTJ’s think logically and concentrate on the present.

Historically, this is deemed an awful match because their cognitive functions are in the opposite order – which often leads to poor communication and misunderstandings. 

Great maturity and a healthy respect for the other’s differences are paramount for this to work.