- 1. a. Not certain; not having certain knowledge; not assured in mind; distrustful. Source: opted
- 2. a. Irresolute; inconsonant; variable; untrustworthy; as, an uncertain person; an uncertain breeze. Source: opted
- 3. a. Questionable; equivocal; indefinite; problematical. Source: opted
- 4. a. Not sure; liable to fall or err; fallible. Source: opted
- 5. a. To make uncertain. Source: opted
- 6. adj. lacking or indicating lack of confidence or assurance Source: wordnet
- 7. adj. not established beyond doubt; still undecided or unknown Source: wordnet
- 8. adj. not established or confirmed Source: wordnet
- 9. adj. not certain to occur; not inevitable Source: wordnet
- 10. adj. subject to change Source: wordnet
- 11. adj. not consistent or dependable Source: wordnet
- 12. adj. ambiguous (especially in the negative) Source: wordnet
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