Synonyms of hollowness

1 Syllable
blank, chasm, void, gap
2 Syllables
vainness, vaccum, waste, blankness, vacuum
3 Syllables
vacuity, pointlessness, vacancy, barrenness, bootlessness, exhaustion, vacuousness, emptiness
4 Syllables
futility, uselessness, depletedness, destitution, meaninglessness, desolation, inanity, desertedness, futilities, inanition
6 Syllables
unprofitableness