weak knees

Legs like jelly

Weak knees describes the physical sensation of legs becoming unsteady—from fear, arousal, or overwhelming emotion.

Someone might get weak knees meeting a celebrity or standing at the edge of a cliff.

That smile gives me weak knees.

To be weak-kneed (hyphenated as an adjective) is to lack resolve or courage: a weak-kneed response to the crisis.

Related

quivering · faint · swoon · nervous · nervous wreck · butterflies · lovesick · collapse · unstable · faltering · tottering · dizzy · lightheaded · infatuation · crush · head over heels · love at first sight · speechless

Categories
Opposites
emotional/psychological resolve

weak kneesbackbone

Vertebral column, or courage

nerves of steel · stiff upper lip · iron will · intestinal fortitude · steadfastness

romantic/emotional susceptibility

weak kneesunmoved

Not stirred physically/emotionally

heart of stone · cold fish · stoic · unflappable · unaffected

Family

weak, knees, weaker, weakest, weakly, weaken, weakened, weakening, weakness

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G