unsure
Meaning
not certain or confident about something
not fixed or definite; likely to change
Structure
Usage
she was unsure about which path to take.
i am unsure of the exact time of the meeting.
the future of the project remains unsure.
Etymology
The word "unsure" is a transparent English compound formed by adding the native English negative prefix "un-" to the adjective "sure". "sure" entered English from Old French seur, which itself descended from Latin securus, meaning "safe, secure, free from care" (from se- "without" + cura "care"). The Latin term conveyed a state of freedom from anxiety or doubt. The prefix "un-", with its ancient Germanic roots, systematically negates the quality of its base word. Therefore, "unsure" logically denotes the absence of the certainty or confidence implied by "sure", evolving from a literal sense of being "not secure in knowledge or belief" to its current abstract meanings of doubt and indeterminacy.
Analysis
- un: a prefix of english origin (old english, from proto-germanic), meaning "not". it functions as a negative particle. - sure: an adjective of english origin (from middle english, via old french from latin securus meaning "secure, free from care"). it functions as the core root meaning "certain, confident, reliable".