An emphatic NO!
Women tend to think that they shouldn’t lift heavy weights because they’ve always been taught not to. CrossFit, nor lifting weights, will give women “manly” muscles. The women who have really large, manly looking bodies have to work incredibly hard at it and often take Steroids. Women do not naturally build large muscles. Also, how much muscle definition that you see will also depend on a woman’s percentage of body fat. The lower the body fat, the more muscle definition will be seen.
Women need to have muscles and be strong because women lift babies and small children, grocery bags, move furniture, do yard work and so much more. Think how much easier these things would be if you were strong.