Here's what rhymes with undernourished.

Consider these alternatives

underfed / said underemployed / employed obese / peace underweight / late emaciated / dated overweight / late underdeveloped / developed dehydrated / hydrated asthmatic / dramatic malnutrition / position destitute / food overpopulated / underpopulated anemic / phonemic overexposed / most underrepresented / prevented unrepresented / prevented undereducated / indicated autistic / characteristic acutely / absolutely overpaid / made dispossessed / best distended / prevented maimed / change