The “J” section of my Thesaurus is slim.
Slim could also be used to apply to individual portions of today’s living thing. I present (well, image obtained during visit to Missouri Botanical Garden) the Japanese painted fern.
Delicate. Jostled by a breeze. Great for a shady portion of your property. Is the ground a little on the moist side? So much the better. A row of these silver-green beauties on the shaded side of a fence, building, or under large trees provides interest and texture for most of the year. Easy care — my sort of plant.