I mean, without specifying which part of their outfit is skimpy?
In English, when we use a qualificative such as "revealing" or "scantily clad", the person may, for all we know, be wearing a scandalously short skirt, or a see-through negligee, or a tight-fitting dress that shows their back, or practically just about any skimpy outfit. But we’ll never know for sure (by the word alone) which part of their body they are actually revealing.
I assume that « échancré » and « décolleté » are part-specific terms that don’t quite cut it. I wonder if there is a nice and short French equivalent of "revealing" or "scantily clad" – something general, all-inclusive. At the same time, the more concise, the better.
I'm not looking for an explanatory phrase that drags on, such as « une tenue qui met en valeur ses atouts sexuels » or « une fille habillée de manière sexy ».