Synonyms of thins

1 Syllable
lean, stick, slim, gaunt, slight, pole, small, wan, lank, stilt
2 Syllables
scraggy, twiggy, narrow, skinny, lanky, shadow, slinky, starved, gangling, rangy, lightweight, haggard, stalky, beanstalk, spindly, bony, gangly, reedy, scrawny, subtle, wasted, spare, puny, peaked, meager, pinched
3 Syllables
rickety, fragile, rarefied, shriveled, beanpole, featherweight, rawboned, twiglike, underweight, ethereal, wizened, skeletal, threadlike
4 Syllables
cadaverous, attenuate, emaciated, delicate, attenuated
5 Syllables
undernourished