Sheepishly rhymes with:
bearishly, bullishly, devilishly, foolishly, ghoulishly, girlishly, lavishly, slavishly, sluggishly, stylishly
Sheepishly sounds like:
savagely, spacial, spackle, speagle, special, speciale, specially, speckle, speegle, spegal, speziale, spiegel, spogli, spousal, subsoil, suspiciously