adj. 1. Not yet determined or settled; open: Our position on this bill is still undecided. 2. Not having reached a decision; uncommitted: undecided voters. n. pl. un·de·cid·eds One, such as a voter, that has not yet reached a decision: "Will this joint interview make up minds among the vast throng of undecideds?" (William Safire). un′de·cided·ly adv. un′de·cided·ness n. |
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