| bony(adjective, underweight, slimness) |
| emaciated(adjective, underweight, slimness) |
| gaunt(adjective, underweight, slimness) |
| lank(adjective, underweight, slimness) |
| lanky(adjective, underweight, slimness) |
| lean(adjective, underweight, slimness) |
| rawboned(adjective, underweight, slimness) |
| scraggy(adjective, underweight, slimness) |
| scrawny(adjective, underweight, slimness) |
| skeletal(adjective, underweight, slimness) |
| slender(adjective, underweight, slimness) |
| spare(adjective, underweight, slimness) |
| undernourished(adjective, underweight, slimness) |
| all skin and bones(expression, underweight, slimness) |
| angular(adjective, underweight, slimness) |
| attenuate(adjective, underweight, slimness) |
| attenuated(adjective, underweight, slimness) |
| beanpole(adjective, underweight, slimness) |
| beanstalk(adjective, underweight, slimness) |
| cadaverous(adjective, underweight, slimness) |