This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Not yet determined or settled; open: Our position on this bill is still undecided.

adj. Not having reached a decision; uncommitted: undecided voters.

n. 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).

adj. Open and not yet settled or determined.

adj. Uncommitted, not having reached a decision.

n. A voter etc. who has not yet come to a decision.

Not decided or determined; not settled.

Not having one's mind made up or one's purpose fixed; irresolute.

adj. characterized by indecision

adj. not yet having made a commitment

adj. not brought to a conclusion; subject to further thought

"(Soundbite of music) INSKEEP: Some Senate races remain undecided this morning."

indecisive    uncommitted    unsettled   

doubtful    hesitating   

unsettled    indeterminate    ambivalent    of two minds    irresolute   

abided    chided    collided    confided    decided    derided    glided    guided    lopsided    misguided   

unsure    irresolute    hesitant    unable    indecisive    unsettle    undetermined    averse    unconvinced    unsteady