Synonym: incapable, incompetent, unfit, unqualified. Antonym: able. Similar words: enable, sustainable, able, cable, table, be able to, tableau, variable. Meaning: [ʌnˈeɪb(ə)l] 
adj. 1. (usually followed by `to') not having the necessary means or skill or know-how 2. (usually followed by `to') lacking necessary physical or mental ability 3. lacking in power or forcefulness.
adj. 1. (usually followed by `to') not having the necessary means or skill or know-how 2. (usually followed by `to') lacking necessary physical or mental ability 3. lacking in power or forcefulness. 
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241. The two countries were unable to agree on a common strategy.
242. He lost consciousness after the fall, and they were unable to bring him to.
243. They were unable to match up his tissue type with any of the possible donors.
244. Unable to afford a new car[sentencedict.com], we had to run the old one into the ground.
245. Unfortunately they were unable to find a suitable person to fill the post .
246. She stared at him again, unable to believe the evidence of her senses.
247. So far the US has been unable to bring him to justice .
248. Police said they had been unable to serve a summons on 25-year-old Lee Jones.
249. He was unable to travel to Barcelona with the rest of the team.
250. Despite their valiant efforts, they were unable to save the child's life.
251. Despite our frantic efforts, we were unable to save the boy's life.
252. I regret that I am unable to accept your kind invitation.
253. They are unable to see beyond the narrow world of the theatre.
254. The court was unable to judge the case before all evidence was put before it.
255. He had been unable to escape the cruelties of war.
256. The dissidents were unable to hold meetings or travel freely.
257. The government was unable to curb the excesses of the secret police.
257. Sentencedict.com try its best to collect and create good sentences.
258. Oil majors need not fear being unable to sell their crude.
259. The train, unable to stop in time, sliced through the bus, killed nine passengers.
260. Refugees have been unable to find a voice in politics.
261. He is criminally insane, unable to stop himself attacking women.
262. She was unable to conceive a child naturally and was offered fertility treatment.
263. The speed of economic change has been so great that the tax-collecting system has been unable to cope.
264. He was unable to differentiate even between the circle and the ellipse.
265. British scientists have so far been unable to reproduce these results.
266. Hundreds of people were unable to gain admittance to the hall.
267. Many families are up against it, unable to afford even basic items.
268. The company has so far been unable to shake its reputation for being old-fashioned.
269. The bank is insolvent and will be unable to live up to its obligations.
270. He is unable to do the job for lack of experience.
More similar words: enable, sustainable, able, cable, table, be able to, tableau, variable, bearable, suitable, reliable, vegetable, disabled, available, comparable, favorable, agreeable, on the table, inevitable, acceptable, changeable, vulnerable, tablespoon, remarkable, uncomfortable, be available, unchangeable, considerable, fortunately, complain about.