undecided
Americanadjective
-
not decided or determined.
-
not having one's mind firmly made up.
- Synonyms:
- irresolute, vacillating, indecisive
noun
adjective
-
not having made up one's mind
-
(of an issue, problem, etc) not agreed or decided upon
Other Word Forms
Etymology
Origin of undecided
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The poll found Talarico garnering 43% of independents to Paxton’s 23%; 29% remain undecided.
From Salon ● Jul. 29, 2026
She had been undecided in the primary until she read about his background.
From Slate ● Jul. 14, 2026
A March poll by UC Berkeley’s Institute of Governmental Studies showed 52% of registered voters support the billionaire tax while 33% opposed it and 15% were undecided.
From Los Angeles Times ● Jul. 8, 2026
Having claimed to have knocked on every door in the constituency several times, as Reform UK has, team Burnham's approach is to send their candidate to speak to undecided voters personally, often about local issues.
From BBC ● Jun. 11, 2026
Of that as yet I was undecided, but it would give me pleasure if my bags were brought up from the ground floor in order that they might not be stolen.
From "The Sun Also Rises" by Ernest Hemingway
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.