Synonym: conundrum, enigma, issue, mystery, perplexity, puzzle, question. Antonym: solution. Similar words: probably, robot, oblivious, obligation, lemon, element, dilemma, implement. Meaning: ['prɑbləm /'prɒ-] 
n. 1. a state of difficulty that needs to be resolved 2. a source of difficulty 3. a question raised for consideration or solution.
n. 1. a state of difficulty that needs to be resolved 2. a source of difficulty 3. a question raised for consideration or solution. 
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91 She was buffaloed by the problem.
92 The rail strike is a problem for all commuters.
93 We will tackle this difficult problem.
94 As you're aware, this is not a new problem.
95 I've never denied that there is a housing problem.
96 The problem is beyond my understanding.
97 We must view the problem in its entirety.
98 Stress is a major problem of modern life.
99 Shortage of water is a growing problem.
100 It all depends on how you tackle the problem.
101 He looked at the problem only from his angle.
102 It would appear that this was a major problem.
103 Smog is a major problem in Athens.
104 We need to try alternative approaches to the problem.
105 That, I think,(www.Sentencedict.com) is the nub of the problem.
106 We had underestimated the scale of the problem.
107 About the problem, we must take immediate actions.
108 Everyone has his problem to tackle.
109 He is a man alert in problem.
110 'You understand the problem because you're so much older.' 'I'll take that as a compliment!'
111 These figures clearly demonstrate the size of the economic problem facing the country.
112 If you think that these transport problems can be solved by building more roads, you completely misunderstand the nature of the problem.
113 You can't just walk away from a marriage at the first sign of a problem.
114 He was criticized for his inept handling of the problem.
115 Providing homeless people with somewhere to stay when the weather is cold only skates round the problem, it doesn't solve it.
116 The problem is that, au fond , he's very lazy.
117 Calling somebody else fat won't make you any skinnier. Calling someone stupid doesn't make you any smarter. All you can do in life is try to solve the problem in front of you.
118 Most students face the problem of funding themselves while they are studying.
119 One of the problem areas is lax security for airport personnel.
120 The campaign was designed to increase public awareness of the problem.
More similar words: probably, robot, oblivious, obligation, lemon, element, dilemma, implement, settlement, elementary, finite element, implementation, pro, able, table, cable, bless, blend, Bible, bubble, enable, unable, marble, double, foible, prompt, be able to, visible, voluble, stumble.