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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1 Human pride is human weakness.
2 I have got over my weakness and fatigue.
3 My weakness is that I care too much.
4 The legislation has a fundamental weakness.
5 Emotion is the innate weakness of human.
6 I took advantage of his weakness.
7 It is a weakness of the system.
8 The sudden weakness in her legs made her stumble.
9 He thought that crying was a sign of weakness.
10 Stephen himself had a weakness for cats.
11 The greatest weakness of the scheme lies in its lack of government support.
12 In a position of authority,[www.Sentencedict.com] a weakness for the opposite sex leaves you open to blackmail.
13 The country'seconomic problems are largely due to the weakness of the recovery.
14 Strength alone knows conflict, weakness is below even defeat, and is born vanquished.
15 Can you spot the weakness in her argument?
16 This illustrates a fundamental weakness in the system.
17 Symptoms of anaemia include weakness, fatigue and iron deficiency.
18 She was plagued by weakness, fatigue, and dizziness.
19 The main weakness of the proposal is conceptual.
20 I've got a real weakness for chocolate.
21 Early symptoms include anorexia, muscular weakness and fatigue.
22 If she has any weakness, it is her Italian.
23 He has a weakness for chocolate.
24 The king was suffering from cardiac weakness.
25 I have a real weakness for fashionable clothes.
26 Spending too much money is her weakness.
27 No matter how strong I will get,you are still my weakness.
28 British newspapers were full of moral outrage at the weakness of other countries.
29 You are the reason why I became stronger. But still, you are my weakness.
30 The dollar has fallen in value amid rumors of weakness in the US economy.
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.