(a.) Like a sylph.

Lilliputian Tom Thumb arch dainty diminutive dumpy dwarf dwarfed dwarfish elfish elflike elvish faery fairy fairyish fairylike fay frolicsome gnomelike gnomish impish incipient little meager midget mischievous nanoid pixieish playful puckish pygmy rudimental rudimentary runty scraggy scrubby shriveled shrunk shrunken small sprightly squat stunted sylphidine sylphine sylphish sylphlike sylphy tiny tricky undersize undersized wee wizened