The Collaborative International Dictionary of English v.0.48:
Equivocalness \E*quiv"o*cal*ness\, n. The state of being equivocal. [1913 Webster]WordNet (r) 3.0 (2006):
equivocalness n 1: unclearness by virtue of having more than one meaning [syn: ambiguity, equivocalness] [ant: unambiguity, unequivocalness]