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null and void

adjective

Roget 158: powerless, impotent, unable, incapable, incompetent; inefficient, ineffective; inept; unfit, unfitted; unqualified, disqualified; unendowed; inapt, ... show more

Roget 169: unproductive, acarpous, inoperative, barren, addled, infertile, unfertile, unprolific, arid, sterile, unfruitful, infecund; sine prole; fallow; ... show more

Roget 964: illegal [contrary to law], unlawful, illegitimate; not allowed, prohibited etc. 761; illicit, contraband; actionable.    unwarranted, unwarrantable; unauthorized; ... show more

Moby thesaurus: bad, bare, barren, bland, blank, bleached, characterless, clear, devoid, empty, featureless, hollow, inane, insipid, invalid, null, repealed, revoked, unrelieved, vacant ... show more.

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