Synonyms of weak at the knees in English:

weak at the knees


See definition of weak at the knees

phrase

1‘she has accepted a challenge that would make the bravest man go weak at the knees’

SYNONYMS
faint, dizzy, light-headed, giddy, shaky
weak-kneed, wobbly, quivery, unsteady, groggy, muzzy
informal trembly, all of a tremble, all of a quiver, with rubbery legs, woozy
rare vertiginous