TheDictionarydefines “inappropriate” as “not proper or suitable.”

When the “RHOC” ladies traveled to Jamaica, they wore Rastafarian caps with faux dreadlocks.

In Potomac, Monique Samuels wore a Native American headdress to a themed party.

RHOC Jamaica trip

Erika Girardi of Beverly Hills dressed as a geisha in Japan.

Showing up in the same outfit (yikes!)

No one wants to show up to an event wearing the same outfit as another person.

Dorit Kemsley wearing see-through dress while dancing with kids

Accidental twinning moments are just for twins, but not the Housewives.

Though a potential squabble situation, Rinna took the moment to laugh at the duo in good humor.

There is also the art of over-dressing, which some have perfected.

RHOBH’s kyle richards and lisa rinna

“Kyle, this is not a fashion show,” she reportedly told her sister (viaHeavy).

“Why do all these mothers dress like they’re 18?

All those tight halter tops/jeans/high heels is nauseating.

Real Housewives of Orange County

Another added, “Trying that hard to look young only makes you look old and desperate.”