Faze/feɪz/ Definition 1 of 1Pro Tip 1/3Emotional Resilience Used when someone remains unaffected by events that might upset others. Despite the shocking news, she was completely unfazed. Pro Tip 2/3Negative Connotation Often implies surprise or disturbance is expected but does not occur. The veteran teacher was not fazed by the students' prank. Pro Tip 3/3Resistance to Change Implies steadiness in face of new challenges or changing situations. The sudden market crash seemed to faze everyone except her.