Definitions
1.noun(with "the") Something uncertain.
2.adjectiveNot certain; unsure.
3.adjectiveNot known for certain; questionable."Tomorrow's weather is uncertain."
4.adjectiveNot yet determined; undecided.
5.adjectiveVariable and subject to change.
6.adjectiveFitful or unsteady.
7.adjectiveUnpredictable or capricious.