undecided

[uhn-di-sahy-did] / ˌʌn dɪˈsaɪ dɪd /

ADJECTIVE

not sure, not definite

Synonyms

STRONGEST

ambivalent doubtful hesitant uncertain unclear uncommitted undetermined unsure vague wavering

WEAK

betwixt and between blowing hot and cold borderline debatable dithering dubious equivocal hemming and hawing iffy in the middle indecisive indefinite irresolute moot of two minds on the fence open pendent pending running hot and cold tentative torn unfinished unsettled up in the air waffling wishy-washy

Antonyms

STRONGEST

certain clear definite determined resolved secure settled sure

WEAK

decided undoubted

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.

Now Europe's longest-serving leader is trying to mobilise his supporters and reach the undecided.

From BBC • Apr. 3, 2026

The Berkeley IGS poll showed about a quarter of voters were undecided.

From Los Angeles Times • Mar. 30, 2026

About a quarter of voters were undecided, the poll found.

From Los Angeles Times • Mar. 22, 2026

But the question of how to apply the law to generative AI systems remains undecided.

From Barron's • Mar. 20, 2026

Bilbo stood for a moment tense and undecided.

From "The Fellowship of the Ring" by J.R.R. Tolkien