undecided

adjective

un·​de·​cid·​ed ˌən-di-ˈsī-dəd 

1

: not having made a decision

undecided voters

… jurors announced they had reached verdicts on some counts, but remained undecided on some of the most serious charges.

—David A. Kaplan

2

: not having an answer or result : not yet determined or settled

an undecided question/issue

Synonyms of undecided

• pending
• unsettled
• undetermined
• unresolved
• debatable

Examples of undecided in a Sentence

a number of undecided matters still before the committee

voters still seem to be undecided about that candidate's fitness for the office of president

Recent Examples on the Web

Trump’s sagging approval rating comes as Democrats have a chance at outperforming Republicans in midterms, with an Emerson poll taken in late April showing Democrats with a 10-point advantage on the generic congressional ballot, though 10% of voters are undecided. —Sara Dorn, Forbes.com, 22 May 2026

That’s now the spot Kentucky is in, unless Mark Pope can sign one or two of the undecided NBA entrants who are also in the portal. —Cj Moore, New York Times, 21 May 2026

The percentage of undecided voters dipped slightly from the last poll, going from 14% to 13%. —Linh Tat, Daily News, 19 May 2026

The next project remains undecided. —Naman Ramachandran, Variety, 19 May 2026

Word History

First Known Use

1540, in the meaning defined at sense 2

Rhymes for undecided

• coincided
• subdivided
• undivided
• unprovided
• abided
• collided
• confided
• decided
• derided
• divided
• elided
• lopsided

Kids Definition

undecided

adjective

un·​de·​cid·​ed

ˌən-di-ˈsīd-əd

1

: not yet decided : not settled

the question is still undecided

2

: not having decided : uncertain what to do

still undecided about it

undecidedly adverb