1
: having knock-knee
an emaciated knock-kneed child
2
a
: functioning or moving awkwardly or jerkily or laboriously
knock-kneed lines of verse
: limping, lame, inept, weak
b
: devoid of smoothness and grace : clumsy, gauche
a knock-kneed collection of provincial practitioners—
Times Literary Supplement a knock-kneed vase in the foreground—
H. L. Mencken
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Merriam-Webster unabridged