Surfaceness rhymes with:
callousness, carelessness, cautiousness, consciousness, contagiousness, contentiousness, dangerousness, disingenuousness, fractiousness, graciousness, hellaciousness, helplessness, homelessness, hopelessness, joblessness, lawlessness, nervousness, outrageousness, pompousness, powerlessness, rebelliousness, recklessness, restlessness, righteousness, ruthlessness, seriousness, weightlessness
Surfaceness sounds like:
sacrificing, servicemen's, servicing, surfacing, surpassing