Synonym: changeable, doubtful, insecure, precarious, speculative, unpredictable, unsure. Antonym: certain. Similar words: uncertainty, certain, for certain, certainly, certainly not, entertainment, curtain, concert. Meaning: [ʌnˈsɜːt(ə)n; -tɪn] 
adj. 1. lacking or indicating lack of confidence or assurance 2. not established beyond doubt; still undecided or unknown 3. not established or confirmed 4. not certain to occur; not inevitable 5. subject to change 6. not consistent or dependable 7. ambiguous (especially in the negative).
adj. 1. lacking or indicating lack of confidence or assurance 2. not established beyond doubt; still undecided or unknown 3. not established or confirmed 4. not certain to occur; not inevitable 5. subject to change 6. not consistent or dependable 7. ambiguous (especially in the negative). 
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241. Relativism is not an attractive proposition to anyone, least of all philosophers, because everything becomes so uncertain and transitory.
242. The outlook for their national teams is, to say the least, uncertain.
243. But how does a woman best handle that hellish and uncertain time when her husband is still shopping for the supplements?
244. Uncertain which route to take, and lacking the confidence to follow his instincts, the Prince turned in on himself.
245. Oduok has gone from being an inexperienced, uncertain player to one of the best players in the West Coast Conference.
246. Control over these armed forces and the massive nuclear capability is uncertain.
247. We can add to this the uncertain environment in which decision makers operate.
248. Hugh Sixsmith was himself a screenplay writer of considerable though uncertain reputation.
249. Just how much is due to inherited characteristics, and how much to other biological factors or early childhood experiences is still uncertain.
250. The pathogenesis of benign stricture formation in ulcerative colitis remains uncertain.
251. At this angle, in the uncertain light, he resembled an eighty-year-old man, wide-eyed with fear.
252. It is a happy but open ending, as the young couple, like most others, face an uncertain future.
253. Unfortunately little is known about its internal layout, while its date remains uncertain.
254. To take light exercise is not usually dangerous, but if anyone is uncertain it might be wise to consult a doctor.
255. They come in suspicious and uncertain and are given an adjustment period of up to 3 months.
256. Martina and I performed the uncertain dance of people parting, with its limited steps.
257. The conditions of its composition and even a precise date for the play are uncertain.
258. The date of Magnus's slaying is uncertain but it was most likely 16 April 1116 or 1117.
259. Your accountant can be a perfect excuse for you not to invest in your friends' financially uncertain ventures.
260. For once in her life, she was lost for words, and uncertain of her argumentative ground.
261. Nobody wants to be uncertain of him.
262. She spoke in no uncertain terms.
263. The histogenesis of meningioma is uncertain.
264. Rough Set is a new mathematical tool to deal with fuzzy and uncertain knowledge. It has strong knowledge obtaining ability.
265. Commercial house price is influenced by many kinds of factors, which are both macro and micro, and both uncertain and determinacy.
266. The deterministic, Newtonian view of a clockwork Universe was replaced by the much more dynamic, uncertain and entangled world of Quantum Mechanics.sentencedict.com
267. Secondly, by choosing different aspects of original number and analyzing the data rules, the model decreases effects of uncertain factors on forecasting.
268. The paper provides a two-stage 0-1 stochastic program model for the implementation of strategic supply chain planning under the uncertain environment.
269. Tori Hudson, Naturopathic Physician, it is uncertain whether or not lesbians get more breast cancer.
270. It is uncertain whether this explains its effect on MS lesions.
More similar words: uncertainty, certain, for certain, certainly, certainly not, entertainment, curtain, concert, maintain, undertake, uncomfortable, cancer, obtain, retain, dancer, sustain, contain, captain, concern, bounce, container, retaining, announce, sustainable, concerning, of importance, announcement, maintenance, officer, soccer.