invalid, void, nugatory, null set, null object, nullness, zero, nought, emptiness, nothingness, more...

existent, valid, effective, substantial, real

void, empty, nonexistent, more...

first, non, appropriate, true, sharp, constant, deepest, false, complete, literal, second

does not mean,   no results,   means nothing,   anything or nothing,   and void,   zero for nero,   having nothing,   meaning nothing,   no resu,   legally void