A small mound of earth created by a mole's burrowing underneath the surface of the ground
disapproval If you say that someone is making a mountain out of a molehill, you are critical of them for making an unimportant fact or difficulty seem like a serious one. The British press, making a mountain out of a molehill, precipitated an unnecessary economic crisis. a small pile of earth made by a mole make a mountain out of a molehill mountain