Short answer:
Most people have a dominant style that sets the shape of an outfit and a secondary one that shows up in details and accessories. The dominant decides the silhouette; the secondary decides what makes it yours. A single-word result loses the half that does the interesting work.
Hand fourteen questions to a hundred people and a handful come out cleanly as one type. The rest split — heavily one way with a consistent pull in another direction, and that pull is not noise. It is the part of their wardrobe that does not look like everyone else's, and a quiz that rounds it away has thrown out the answer along with the ambiguity.
The two work at different levels. The dominant style sets the silhouette: how structured the shoulders are, how the waist is treated, whether a trouser is straight or wide. It is visible from across a room and it changes slowly. The secondary style lives in the choices made inside that silhouette — the neckline, the shoe, the hardware, whether there is a print. It is visible from a metre away and it is where most people's actual taste sits.
A worked example makes it concrete. Classic with a romantic secondary is a tailored trouser and a blazer, worn with a blouse that has a tie neck and a softer shoe — the shape is structured, the details are not. Classic with an edgy secondary is the same trouser and blazer with a plain top and a heavy boot. Same dominant, same silhouette, completely different wardrobes, and no single word distinguishes them.
This also explains a common frustration. People who read a single-result description and feel that three-quarters of it fits are usually reading their dominant style with the secondary missing. The quarter that feels wrong is not an error in the system; it is the secondary style asking to be accounted for.