Lacking grace or social polish; awkward or tactless.
Lacking grace, esp. social grace; awkward; tactless.
The definition of gauche is someone who is socially clumsy or tactless.
An example of gauche is a guest at a fancy dinner party who arrives wearing jeans and flip flops.
(chemistry) Describing a torsion angle of 60°
Origin of gauche
Borrowing from French gauche (“left, awkward”), from gauchir (“to veer, turn”), from Old French gaucher (“to trample, walk clumsily”), from Frankish welkan (“to full, trample”), from Proto-Germanic *welk- (“to full, roll up”). Akin to Old High German walchan (“to knead”), Old English wealcian (“to roll up, curl”), Old Norse valka (“to drag about”). More at walk.