She doesn't very much care what people think of her, and is clearly at ease in crowds and in authority positions. Mirabel is often very sarcastic, and has little patience for people who don't understand her point quickly. Mirabel also often wears an almost-smirk, which Zachary describes as being reminiscent of classic film stars. Mirabel is most often seen wearing more casual clothing, such as jeans, boots, and a woolly cream sweater that 'looks as though it spent as little time as possible in the transition from sheep to clothing', though she also seems to have a flair for the dramatic in her clothing choices, as in Zachary (16), Zachary finds her tucked in the corner of a ballroom wearing a black dress that 'could probably be described as slinky if it wasn't so voluminous'. Her other necklaces have more keys, a compass, and something that resembles a bird skull cast in silver. She also wears layered necklaces, such as the one that Zachary noticed which drew him to New York City in the first place, which has three chains, one with a bee, one with a key, and one with a sword. She has multiple piercings in her ears, and wears hoop earrings.

Mirabel's most distinguishing feature is her pink hair, which is described to range from shades of 'pomegranate to ballet slipper'. 3.8 Afterward: Something New and Something Next.3.7 Book VI: The Secret Diary of Katrina Hawkins.

3.4 Book III: The Ballad of Simon and Eleanor.

The starless sea