A character whose lithe, lightweight appearance suggests a Fragile Speedster (or, at the least, a character of average size compared to others) but it turns out they are a Mighty Glacier. Compare with Cute Bruiser, where a fragile-looking character is strong, but not slow (also, this trope is not confined to female characters). Often feature Muscles Are Meaningless. This trope is the inversion of Acrofatic. May be a Super Strong Child depending on age. Not to be confused with an Ice Queen, which has more to do with personality than toughness. Examples of Glacier Waif include: