Synonym: failing, helplessness, impuissance. Similar words: darkness, sickness, thickness, homesickness, weariness, freakishness, weak, weaken. Meaning: ['wɪːknɪs] 
n. 1. a flaw or weak point 2. powerlessness revealed by an inability to act 3. the property of lacking physical or mental strength; liability to failure under pressure or stress or strain 4. the condition of being financially weak 5. a penchant for something even though it might not be good for you.
n. 1. a flaw or weak point 2. powerlessness revealed by an inability to act 3. the property of lacking physical or mental strength; liability to failure under pressure or stress or strain 4. the condition of being financially weak 5. a penchant for something even though it might not be good for you. 
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61 In a moment of weakness I let him drive my car.
62 My diet would be fine if only I didn't have this weakness for sweet things.
63 The Governmentis worried about the weakness of the pound .
64 This latest conflict further illustrates the weakness of the UN.
65 The success of the Revolution is explicable in terms of the weakness of the king's government.
66 In his campaign speeches,[sentencedict.com/weakness.html] he kept pounding at the weakness of the government's foreign policy.
67 I dared not cry or show any sign of weakness .
68 All cruelty springs from weakness. Seneca 
69 A fear of weakness only strengthens weakness. Criss Jami
70 Traders said several factors contributed to Nasdaq's weakness.
71 No weakness was tolerated, no dithering allowed.
72 Never test another man by your own weakness. Joseph Conrad
73 Power was my weakness and my temptation. J.K. Rowling
74 It's his greatest weakness as a counsellor.
75 This highlights a serious weakness in his philosophy.
76 Weakness of attitude becomes weakness of character. Albert Einstein
77 Despite clear signs of weakness in his support[sentencedict.com], Sen.
78 Pessimism leads to weakness, optimism to power. William James
79 Vulnerability sounds like truth and feels like courage. Truth and courage aren’t always comfortable, but they’re never weakness. Brene Brown
80 Another video weakness to guard against is the coarse and grainy look of plain surfaces in bright primary colours, especially reds.
81 The military had placed the island city in the best possible defense posture, considering the inherent weakness of its geographic position.
82 They come up against our distinctive types of personal defence and weakness.
83 Most people neglect or underestimate the values of smiling, and some people view smiling as a sign of weakness or self-depreciating - to their own disadvantage. Dr T.P.Chia
84 As the examples already given illustrate, most of the protests concerned what the conservatives saw as government weakness.
85 He knew that this particular pony would test that weakness and so would help Evelyn to learn to correct her problem.
86 I've never found therapy to be a sign of weakness; I've found the opposite to be true. The willingness to have a mirror held up to you definitely requires strength. Brooke Shields
87 To be dexterous in danger is a virtue; but to court danger to show it, is weakness. William Penn
88 There is often associated muscle weakness and sometimes heart problems can occur.
89 The quadriceps has such great bulk and strength that slight weakness of knee extension is more difficult to demonstrate. 4.
90 Coming out of hospital was traumatic enough without facing the accusing man, and Shirley was quite right about the weakness.
More similar words: darkness, sickness, thickness, homesickness, weariness, freakishness, weak, weaken, weakling, earnestness, uselessness, selflessness, tactlessness, limitlessness, oneness, newness, coldness, slyness, witness, harness, fitness, hotness, finesse, shyness, illness, madness, sadness, ripeness, softness, hardness.