svelte (adj.)

• airy
• attenuate
• attenuated
• boyish
• delicate
• diaphanous
• diluted
• ethereal
• fine
• finespun
• flimsy
• frail
• gauzy
• girlish
• gossamer
• gracile
• insubstantial
• lacy
• light
• misty
• papery
• rare
• rarefied
• slender
• slight
• slim
• small
• subtle
• sylphlike
• tenuous
• thin
• thin-bodied
• threadlike
• vague
• wasp-waisted
• watered
• watery
• weak
• willowy
• wispy