What is invisible woman' weakness?

Answer 1

It's Unknown, what her weakness is

Answer 2

Invisible Woman's weakness is her reliance on her force field powers for defense, so if her force field is breached or overloaded, she can be vulnerable to physical attacks. Additionally, her powers are tied to her emotional state, so extreme emotions like fear or anger can potentially disrupt her abilities.

Answer 3

it is uglyness and knots in her hair.