Tough and Tough as old boots

Tough adjective - Not easily chewed.

Tough as old boots and tough are semantically related. in hard topic. In some cases you can use "Tough as old boots" instead an adjective "Tough". informal substitute

Nearby Words: toughness, toughen, toughening, tougher, toughed

Tough and tough as old boots are semantically related. Sometimes you can replace term "Tough" with "Tough as old boots", this terms are similar.