資料來源 : pyDict

內彎足的,八字腳的,

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Knock-kneed \Knock"-kneed`\, a.
   Having the legs bent inward so that the knees touch in
   walking. [Written also {knack-kneed}.]

資料來源 : WordNet®

knock-kneed
     adj : having the knees abnormally close together and the ankles
           wide apart