Flimsy and Light-footed

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

Light-footed and flimsy are semantically related In some cases you can use "Light-footed" instead an adjective "Flimsy".

Light-footed adjective - Moving easily.

Flimsy and light-footed are semantically related in light topic. Sometimes you can use "Flimsy" instead an adjective phrase "Light-footed", if it concerns topics such as not heavy.