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English definition of “weak-kneed”

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weak-kneed

adjective [after verb] uk   /ˌwiːkˈniːd/ us  
informal disapproving not brave or determined enough to defend your beliefs against others: Instead of defending traditional values, the church frequently seems weak-kneed and irresolute. made to feel weak and likely to fall by emotion: She stood dazed and weak-kneed beside the coffin.
(Definition of weak-kneed from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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