Dilation with no contraction or water breaking
Technically you could dilate to all the way with no noticeable contractions and without your water breaking but that is not common. Most women feel contractions for days or even weeks before they have any dilation. Some women will be surprised when they see their doctor and they find out that they are 2 or 3 cm dilated and they didn't feel any contractions. All women are different and each pregnancy is different.