18 Signs You’re an ISFJ, the ‘Most Considerate’ Personality Type.. The ISFJ is one of the most caring and considerate of the Myers-Briggs personality types, sometimes nicknamed “the defender personality” for their dedication to worthy causes and the needs of others. ISFJs have a strong sense of fairness and tend to be very reliable in upholding their commitments. Because of their attention to detail and warm, personable nature, ISFJs make the ultimate caregivers.

ISFJs are the ones who pick us up when we need it most, the ones who often think about others first, and the ones who don’t mind doing the tough work that needs to get done.