Flimsy and Rickety

Flimsy adjective - Being of a material lacking in sturdiness or substance.

Rickety is a synonym for flimsy in fragile topic. In some cases you can use "Rickety" instead an adjective "Flimsy", when it comes to topics like insubstantial, thin.

Rickety adjective - Inclined to shake as from weakness or defect.

Flimsy is a synonym for rickety in unsound topic. You can use "Flimsy" instead an adjective "Rickety", if it concerns topics such as shaky.