adj. 1. 1 undecided as to whether or not to take a proposed course of action; having feelings both for and against the proposed action. Syn. -- on the fence(predicate), suspensive, uncertain [ WordNet 1.5 ]
a. [ L. bis twice + valens, p. pr. See Valence. ] (Chem.) Equivalent in combining or displacing power to two atoms of hydrogen; dyad. [ 1913 Webster ]