Malnourished rhymes with:
nourished, undernourished, flourished, nourished, undernourished, abolished, accomplished, admonished, anguished, astonished, banished, blemished, brandished, burnished, cherished, demolished, diminished, distinguished, embellished, established, extinguished, finished, flourished, furbished, furnished, garnished, impoverished, languished, lavished, nourished, perished, polished, published, punished, reestablished, refinished, refurbished, relinquished, relished, replenished, semifinished, tarnished, unblemished, undernourished, undiminished, undistinguished, unfinished, unpublished, unpunished, unvarnished, vanished, vanquished, varnished