Definition
Impalpable describes something that is difficult to perceive or grasp, either physically or mentally. It's the opposite of 'palpable.' It suggests something subtle, elusive, and hard to define. Think of a faint aroma, a fleeting feeling, or a complex concept that's hard to put into words. While it can sometimes refer to something you can't physically touch, it more often describes ideas or sensations that are hard to pin down. It's almost like trying to catch smoke.