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

Learning how to wrestle with an issue like AI, which is ambiguous and undecided, is the whole point of an education undertaken in the liberal tradition. —Ian Bogost, The Atlantic, 29 Jan. 2026

In hypothetical general election match-ups, McMorrow bested Rogers by 3 points, with 12 percent undecided. —Julia Mueller, The Hill, 29 Jan. 2026

Fernández needs 40% to win outright; nearly a third of voters remain undecided heading into election day. —Javier Córdoba, Los Angeles Times, 29 Jan. 2026

While leaked internal messages from OpenAI Sam Altman, Apple CEO Tim Cook, and incoming Target CEO Michael Fiddelke show some CEOs are commenting about ICE, many other executives remain undecided about the risks and benefits of making public comments. —Jacqueline Munis, Fortune, 29 Jan. 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