Nullity1. (n.) The quality or state of being null; nothingness; want of efficacy or force.
2. (n.) Nonexistence; as, a decree of nullity of marriage is a decree that no legal marriage exists.
3. (n.) That which is null.
Thesaurus Entries
a little thing, absence, aimlessness, cipher, dead letter, deprivation, dud, dummy, emptiness, empty sound, futility, hardly anything, hollow man, inanity, inessential, insignificance, insignificancy, jackstraw, lay figure, man of straw, marginal matter, matter of indifference, meaninglessness, mere noise, mere nothing, minor matter, nada, naught, nebbish, negation, negativeness, negativity, nihility, no great matter, nobody, noise, nonbeing, nonentity, nonexistence, nonoccurrence, nonreality, nonsensicality, nonsubsistence, not-being, nothing, nothing in particular, nothing to signify, nothingness, paltry affair, peu de chose, phatic communion, puppet, purposelessness, pushover, rien du tout, scarcely anything, senselessness, technicality, thing of naught, trifle, unactuality, unmeaningness, unreality, unsignificancy, vacancy, vacuity, vacuum, void, whiffet, whippersnapper, zero, zilch