[1] : The Collaborative International Dictionary of English v.0.48

weak-kneed \weak"-kneed`\, a.
   having weak knees; hence, easily yielding; wanting
   resolution. --h. james.
   1913 webster

[2] : WordNet (r) 2.0

weak-kneed
     adj : lacking will power or resolution; "the role of the dissenter
           is not for the weak-kneed"

Weak-Kneed >> W Words
Weak-Kneed, definition of term: Weak-Kneed
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