weak at/in the knees
Definition of weak at/in the knees
: so nervous or powerfully affected that it is difficult to stand The announcement made me weak at the knees. She said hello to me and I went weak in the knees.
Word by Word Definitions
: lacking strength: such as
: deficient in physical vigor : feeble, debilitated
: not able to sustain or exert much weight, pressure, or strain
: a joint in the middle part of the human leg that is the articulation between the femur, tibia, and patella
: the part of the leg that includes this joint
: the joint in the hind leg of a four-footed vertebrate that corresponds to the human knee
: to bend the knee to
: to strike with the knee
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