undecided adj.

VERBS be, feel, seem, sound | remain | leave sth The question cannot be left undecided.

ADV. very | quite | still | as yet She is as yet undecided in which direction she wants to make her future career.

PREP. about He is still undecided about what to do. | as to They are undecided as to whether to buy a new car. | on The government remains undecided on this issue.