Here are some synonyms for gauche:
* Awkward
* Clumsy
* Ungainly
* Unpolished
* Rude
* Ill-mannered
* Unsophisticated
Examples:
* "He felt gauche at the formal dinner, unsure of which fork to use."
* "Her gauche comments made everyone uncomfortable."
* "The decorations were a bit gauche, with too much glitter and plastic."
Origin:
The word "gauche" comes from the French word "gauche," meaning "left" or "awkward." This is because left-handedness was often seen as clumsy or ungainly in the past.