Meaning & Definition of word "Uncertain"

Uncertain

/ʌnˈsɜːr.tən/

adjective:

  • 1. Not able to be relied on; not known or definite.
    • Example: The outcomes of the experiment remain uncertain due to various uncontrollable factors.
  • 2. Feeling doubtful or unsure.
    • Example: She felt uncertain about her decision to move to a new city.
  • 3. Subject to change; not fixed.
    • Example: The weather forecast is uncertain this week, with rain possible on any day.
  • 4. Not clearly known or determined.
    • Example: The details of the agreement are still uncertain and need to be clarified.

Etymology

Late Middle English: from un- 'not' + certain.

Common Phrases and Expressions

on uncertain ground:

in a precarious or insecure situation

uncertain times:

periods of anxiety or instability

in uncertain terms:

not clearly or definitively stated

Related Words

certainty:

the quality of being reliably true.

uncertainty:

the state of being uncertain.

certain:

known for sure; established beyond doubt.

Slang Meanings of uncertain

Meaning: iffy

Example Sentence: The plan is a bit iffy right now.

Meaning: up in the air

Example Sentence: Our vacation plans are still up in the air.