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uncertain

Not able to be relied on; not known or definite. / Unable to decide or be sure about something; hesitant.

/ʌnˈsɜːtən/

Adjective
comp: more uncertainsup: most uncertain

It describes a state of instability or hesitation where a definitive answer or outcome is missing. Unlike "unknown," which suggests a total lack of information, "uncertain" often implies that some information exists but it is contradictory or insufficient to provide confidence.

When applied to situations, it carries a tone of precariousness or risk. It is the feeling of standing on shifting sand where the next step cannot be predicted with certainty.

When applied to people, it denotes a psychological state of doubt or fragility. It differs from "indecisive" (which can be a personality trait) by often focusing on a specific moment of hesitation caused by external ambiguity.

💬Casual Conversation

🎬Chloe is scrolling through her banking app, stressed, while Ryan is likely distracted with gaming.
Chloe Smith

I'm super uncertain about how to even tackle this electricity bill, it's wild.

Chloe Smith
Ryan
Ryan

Just pay it online like always. What's the big deal?

💡
Chloe is expressing anxiety and feeling overwhelmed (using 'wild' and 'tackle') about a common adult responsibility, which Ryan, being oblivious, dismisses as a simple task, missing her emotional distress. His response is literal and lacks empathy for her 'adulting' struggles.

Meanings

Adjective

Not able to be relied on; not known or definite.

The future of the project remains uncertain due to a lack of funding.

Adjective

Unable to decide or be sure about something; hesitant.

She felt uncertain about whether she had made the right decision.

Examples

The weather is uncertain.

I am uncertain.

The date is uncertain.

She was uncertain about the answer.

The results are still uncertain.

He felt uncertain during the test.

I am uncertain if I can attend the meeting.

Office

The map was old and the path remained uncertain.

Fantasy

She gave an uncertain smile before walking away.

Romance
History
Apology
Business

Collocations & Compounds

uncertain future

A future about which there is doubt or lack of knowledge.

The company faces an uncertain future due to the economic downturn.

uncertain economic conditions

Economic circumstances that are unpredictable and unstable.

Investors are hesitant to commit funds during uncertain economic conditions.

uncertain outcome

A result that is not known or definite.

The final score of the match remained uncertain outcome until the last minute.

uncertain times

Periods characterized by doubt, instability, or lack of clear direction.

Many people felt anxious living through uncertain times.

uncertain situation

A circumstance that is not clear, settled, or definite.

The police are investigating the uncertain situation at the border.

Etymology

The word 'uncertain' comes from the Latin word 'incertus', meaning 'not fixed, not sure, doubtful'. It's formed from the prefix 'in-' (meaning 'not') and 'certus' (meaning 'sure, settled'). This Latin root was adopted into Old French as 'incertain' and then entered Middle English in the 14th century.

Related Words

Last Updated: May 2026Report an Error